Book overview Ariel Sullivan

Beneath: Complete Book Guide

⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.

Quick Facts

Detail Information
Title Beneath
Author Ariel Sullivan
Publication Year 2026
Genre Dystopian Romance
Setting Haven, an underground city sheltering survivors of nuclear war, six years after the conflict
Narrator Third-person limited, closely following Sasha Cadell
Main Character Sasha Cadell, a 23-year-old medic nicknamed "Death's Angel"

Short Summary

Beneath opens with the single command "Conform," framing the oppressive society of Haven—an underground city built to shelter survivors of a nuclear war. Sasha Cadell, a gifted medic haunted by the deaths of her family, has resigned herself to mere survival, earning the nickname "Death's Angel" for sitting with dying patients when others flee. Commander Tristian Hayes persistently recruits her into Force Unit Seven for a critical surface mission: Haven's supplies are running out, and hidden reserves must be found before everyone dies. Forced into the unit, Sasha battles her self-hatred—an inner "beast" born from trauma—while navigating dangerous training, a brewing conspiracy, and an intense, conflicted relationship with Tristian. The mission above ground reveals both deadly traps and an extraordinary discovery: a hidden bunker containing a mysterious pod labeled TABITHA. As betrayals unravel and a mutiny takes shape, Sasha must decide whether she will merely survive or truly live.

Full Summary

The novel begins with two stark pages: the title "Beneath" followed by the word "Conform," immediately establishing the thematic tension between obedience and what lies hidden underneath. An epigraph from George Orwell's 1984—"Who controls the past controls the future; who controls the present controls the past"—reinforces the theme of manipulated truth.

Sasha Cadell is a twenty-three-year-old survivor living in Haven, an underground shelter constructed to protect remnants of humanity after nuclear war destroyed the surface six years earlier. The war began when she was fifteen; she lost her father to the draft, her brother Eli to violence, and her sister Lara to illness during the desperate journey to Haven. Carrying profound guilt, Sasha believes she destroys everyone she loves.

She works first in the Hospital Ward, where Dr. Kumar nicknames her "Death's Angel"—not because she brings death, but because she stays with the dying when others abandon them, protecting life in its final moments. After switching to the Expansion Sector, she fends off an assault by three Sanitation men during a lockdown, catching the attention of Commander Tristian Hayes. Tristian has been petitioning Command for months to transfer Sasha into his Force unit as a medic. Force Commander Lyssa Burdon eventually approves the transfer, inducting Sasha as Cadet Cadell and ordering Unit Seven to "break" her.

Unit Seven's members initially distrust Sasha. Ingrid Sorenson attacks her, accusing her of replacing their fallen member Lily. Damien interrogates her about her sexual history. Yet over weeks of grueling training—sparring, shooting, obstacle courses, and the tactical simulation called the House—Sasha slowly integrates. A hologram of a young boy during a House exercise triggers a traumatic flashback to Eli's murder, causing her to freeze. The unit, rather than rejecting her, rotates partners to protect her from Burdon's bounty. Levi becomes her partner for the surface mission, pushing her to climb a rope she has repeatedly failed; haunted by her siblings' ghosts, she finally reaches the top.

Tristian reveals the classified truth: Haven has less than a year of supplies remaining. Unit Seven's true mission—Mission Hope—is to locate hidden reserves left by Haven's creators, guarded by traps in a location called the Abyss. Sasha is now bound by the same secrecy and consequences as the unit.

On the surface, the world is gray and lifeless. The unit travels to Outpost Three near the Abyss. While searching, Levi is gravely wounded by a metal-stake trap that impales his shoulder. Sasha performs a field transfusion using her own blood, stabilizes him, and directs the unit in a desperate rotation of blood donations during the trek back to Haven. She disconnects her radiation chest plate to keep the blood bag warm, exposing herself to contamination.

Levi survives, but tensions escalate. Jaxon Taylor is assigned as his replacement and Sasha's new partner, secretly working to undermine the unit for Kaleo. An illness spreads through Haven from the Kitchens, overwhelming the Ward. Sasha treats Ingrid's sister Bretta for a lung infection, defying the system's restrictions. Dr. Kumar, dying from the illness, gives Sasha his hidden charts and a key, with the cryptic instruction to "find the snake and protect the dead."

Sasha and Tristian consummate their long-simmering relationship, sharing their traumatic histories. Tristian reveals that weather reports are falsified and the Observatory team has been systematically killed. Kaleo warns Sasha that she is Tristian's weakness, and that Burdon is not the only one who wants him to fall.

Levi discloses the full history of Unit Thirteen, known as the Angels: Burdon faked illness during a mission, stayed behind, and orchestrated an ambush by Kaleo and another operative. Tristian was gravely wounded; only Levi, Henderson, and Abbott survived. Burdon staged a coup, claimed the old commander died of a virus, and seized control of the Force.

After Kumar's death, Unit Seven jams the doors, declares mutiny, and flees to the surface. Burdon confronts them but cannot stop the escape. The unit splits: a lookout group stays above while Tristian leads Sasha, Isla, and Ingrid into the tunnel system. Sasha uses Kumar's key to unlock a hidden door, revealing a vast underground bunker stocked with building materials, medicine, art, and jewels—Mission Hope fulfilled. She also discovers a pod labeled TABITHA containing a living woman.

Kaleo and three suited Force members confront them. Rumi reveals her secret two-year relationship with Kaleo, devastating Patrick. Kaleo explains he has been working secretly to undermine Burdon, conspiring with Kumar. The chip Sasha carries was part of that plan. Wilma, Peterson, and Abbott are also allies.

On returning to Haven through a hidden tunnel, Burdon captures Tristian and Sasha. She forces Tristian to become her second-in-command and strips Unit Seven of exploratory status, reassigning them to guard shack duty. Sasha identifies Henderson as the spy—the "snake" Kumar warned about—after he inadvertently reveals knowledge of Kumar's death. The unit is broken.

In the epilogue, Sasha—once again called Phoenix—works furiously in Expansion, rejecting her father's survival-only mantra. She now lives for others. Kaleo, also exiled, works beside her. He reveals his collaboration with Rumi and subtly proposes death as an option, asking if she has considered dying. Phoenix refuses to break, but the question lingers. The ending is open, with conspiracies still unfolding and Sasha determined to fight.

Main Characters

Sasha Cadell

Sasha is a twenty-three-year-old medic known as "Death's Angel." Haunted by the deaths of her father, mother, brother Eli, and sister Lara, she carries profound self-hatred—an inner "beast" that urges her to isolate and self-destruct. She is forced to join Force Unit Seven as a cadet medic for a surface mission critical to Haven's survival. Throughout the novel, she gradually moves from mere survival toward a purposeful existence, learning to trust her unit and accept love.

Sasha is a skilled fighter and shooter, trained by her father, and an exceptional medic taught by Dr. Kumar. Her call sign is "Phoenix," later changed to "Beast" by Damien. She falsifies health records to protect patients and ultimately switches her ID band with Levi's to save him.

Tristian Hayes

Commander of Force Unit Seven, Tristian persistently recruits Sasha over three years, recognizing her value and resilience. He carries deep guilt over the betrayal of his previous unit, Unit Thirteen (the Angels), which was ambushed due to Lyssa Burdon's orchestrated coup. Tristian develops a passionate, conflicted relationship with Sasha, becoming her anchor while respecting her autonomy. He reveals the truth about Haven's dwindling supplies and leads the mutiny against Burdon. His leadership style balances discipline with genuine care for his unit, whom he views as family.

Levi

A member of Unit Seven and Sasha's partner on the surface mission, Levi was a former foster child who regards Tristian as a brother. He pushes Sasha to try during training and is gravely wounded by a trap in the Abyss, requiring a field transfusion from Sasha. His injury becomes a turning point for the unit. Levi forgives Sasha unconditionally and shares his philosophy that anger is often grief in disguise.

Ingrid Sorenson

Sister of Bretta, Ingrid is a Force cadet in Unit Seven who initially attacks Sasha, accusing her of taking Lily's place. Over time, she comes to rely on Sasha to save Bretta from a lung infection. Ingrid handles the obstacle course with brute force and carries grief over Lily's death. She chooses to stay behind from the mission to care for her sister.

Rumi Sato

Unit Seven's quiet observer, Rumi silently supports Sasha from the beginning. She is secretly in a two-year relationship with Kaleo, which is revealed during the confrontation at the bunker. Rumi helps uncover conspiracies within Haven, including asking Sasha to retrieve charts of dead Expansion residents to check for faked deaths. Her biggest regret is letting the unit split up.

Lyssa Burdon

Force Commander and primary antagonist, Burdon orchestrated the betrayal of Unit Thirteen, staging a coup to seize control of the Force. She uses Sasha to hurt Tristian, strips Unit Seven of their status, and forces Tristian to become her second-in-command. She represents institutional control and the corruption of power in Haven.

Themes

Conformity vs. Rebellion

The novel opens with the single command "Conform," and Haven's oppressive health-score system, curfews, and assignments enforce obedience. Sasha's journey from numb compliance to active mutiny embodies the central tension. Unit Seven's declaration of mutiny and flight to the surface represents the ultimate rejection of conformity.

Trauma and Healing

Sasha's flashbacks to her family's deaths drive her self-hatred and her inner "beast." The support of Unit Seven, her partnership with Levi, and her relationship with Tristian gradually allow her to begin healing. The novel portrays trauma not as something to be overcome alone but through connection and trust.

Trust and Betrayal

Characters constantly navigate whom to trust. Sasha distrusts the Force. Kaleo is initially perceived as a betrayer but is revealed as a double agent working against Burdon. Henderson is exposed as the true spy. The unit's bond is tested repeatedly by external manipulation and internal secrets.

Survival vs. Living

Sasha begins the novel merely surviving—numb, self-destructive, and isolated. Her father's flower metaphor taught resilience, but she ultimately rejects his survival-only philosophy. She vows to "live for others," shifting toward a purposeful existence. The distinction between biological survival and meaningful life runs throughout.

Power and Control

Haven's leadership manipulates information to maintain control: falsified weather reports, the health-score system, and Burdon's coup. The Orwell epigraph underscores how controlling the past and present consolidates power. The conspiracy reaches from Command down to individual health records.

Symbols

Death's Angel

Originally thought to signify Sasha's association with death, Dr. Kumar reveals the nickname was given because she protects life by staying with the dying when others flee. It represents her core identity—not a bringer of death, but a guardian of life in its final moments.

The Beast

Sasha's internal "beast" embodies her self-hatred and trauma. It claws at her insides, urges her to push people away, and prevents her from fully participating in the unit. Over time, as she lets Unit Seven in, the beast recedes, replaced by something "good—pure."

The Key

Dr. Kumar's dying gift to Sasha unlocks a hidden door in the Abyss, leading to the supply cache and the TABITHA pod. The key symbolizes hope, hidden truths, and Kumar's final act of trust in Sasha.

The Pod TABITHA

Found in the hidden bunker, the pod contains a living woman—potentially the mission's most significant discovery. It represents the unknown future and the possibility of life beyond Haven's understanding. Its existence raises questions about who else may have survived and why the bunker was hidden.

Ending Overview

The novel ends on an open, unresolved note. After Burdon captures the unit, strips their status, and forces Tristian into servitude, Sasha is reassigned to Expansion. In the epilogue, she works furiously with a pickax, rejecting her father's survival-only mantra and declaring she now lives for others. Kaleo, also exiled, works beside her and proposes death as an option—but Phoenix refuses to break. The conspiracies remain active, and Sasha has her own mission now. For a deeper analysis, see the Ending Explained page.

Chapter-by-Chapter Summary

Chapter Title/Description Link
1 The single word "Conform" stands alone, framing the novel's thematic statement on obedience. Read
2 Epigraph quoting Orwell's 1984 on control of past and present. Read
3 Sasha survives an assault during lockdown; Tristian asks her to join his Force unit. Read
4 Flashback to Sasha treating Tristian's unit; Lily's death shattered their bond. Read
5 Command forces Sasha's transfer into the Force as Cadet Cadell; she proves her shooting skill. Read
6 Sasha explores the unit quarters and recalls her family's deaths. Read
7 Burdon orders the Force to break Sasha; she repeatedly fails the rope climb. Read
8 Damien interrogates Sasha about her sexual history; Rumi warns her not to sabotage the unit. Read
9 A hologram of a boy triggers Sasha's traumatic flashback to her brother Eli's murder. Read
10 Sasha freezes during simulation; she visits Lily's old room and confronts her self-hatred. Read
11 Unit Seven rotates partners to protect Sasha; she trains footwork with Tristian. Read
12 Murray ambushes Sasha; Burdon uses Ward death records to berate her; Tristian intervenes. Read
13 Sasha accepts Levi as partner; she climbs the rope at last; romantic tension with Tristian builds. Read
14 The unit reveals Haven has less than a year of supplies; Mission Hope is explained. Read
15 Dr. Kumar reveals the origin of "Death's Angel"; Sasha donates blood despite warnings. Read
16 Unit Seven departs for the surface; Sasha vows not to fail again. Read
17 The unit reaches Outpost Two and shares call signs and regrets. Read
18 Levi reveals his past as a foster child; Tristian enters a tunnel alone; Levi is impaled by a trap. Read
19 Sasha performs a field transfusion and drags Levi to safety, using her own blood. Read
20 Flashback to Sasha's childhood; she directs blood transfusions and relocates Levi's shoulder. Read
21 Levi survives; Jaxon is assigned as Sasha's new partner; Burdon announces the change. Read
22 Damien gives Sasha the call sign "Beast"; Jaxon reveals his plan to sabotage the unit. Read
23 Sasha swaps her health score onto Levi's chart; Kumar reveals the true meaning of "Death's Angel." Read
24 Rumi asks Sasha to retrieve dead Expansion residents' charts; Jaxon taunts Tristian about Sasha. Read
25 Damien shares his journey to Haven; Kumar reveals Burdon is keeping Levi in the Ward. Read
26 Sasha avoids Tristian after their kiss; an epidemic spreads; Ingrid reveals Bretta is sick. Read
27 Sasha treats Bretta; a cryptic warning note appears; Tristian draws out Sasha's admission. Read
28 Sasha and Tristian share an intimate encounter; exits are sealed; the mission is cancelled. Read
29 Tristian admits he wants Sasha, not as a distraction; Kaleo reveals Tristian's past with Burdon. Read
30 Levi reveals Unit Thirteen's betrayal by Burdon; Sasha goes to Tristian and asks him to pretend their encounter is meaningless. Read
31 Sasha and Tristian consummate their relationship; he reveals falsified weather reports and Observatory deaths. Read
32 Kumar dies in Sasha's arms, giving her charts and a key: "Find the snake and protect the dead." Read
33 Unit Seven jams the doors, declares mutiny, and flees to the surface. Read
34 Tristian leads the tunnel team; Sasha uses Kumar's key to unlock a hidden door. Read
35 Unit Seven discovers the supply bunker; Tristian gives a speech affirming their bond; Sasha finds the TABITHA pod. Read
36 Kaleo confronts the unit; Rumi reveals their relationship; Kaleo explains his secret alliance against Burdon. Read
37 The unit extracts supplies; Tristian whispers "I love you"; they stage a fake arrest to re-enter Haven. Read
38 Burdon captures Tristian and Sasha; she forces Tristian to become her second and strips Unit Seven's status. Read
39 Sasha identifies Henderson as the spy; the unit is broken; Tristian leaves in despair. Read
40 Epilogue: Phoenix works in Expansion, living for others; Kaleo proposes death as an option. Read

Common Questions

1. What is Beneath about?

Beneath is a dystopian romance set in Haven, an underground city sheltering nuclear war survivors. Sasha Cadell, a medic called "Death's Angel," is forced into Force Unit Seven for a mission to find hidden supplies before Haven runs out of resources. The story follows her struggle with trauma, her integration into the unit, her romance with Commander Tristian Hayes, and the uncovering of a conspiracy led by Force Commander Lyssa Burdon. It explores themes of conformity, survival versus living, and the power of found family. For more, see the Questions and Answers page.

2. Who is Sasha Cadell?

Sasha Cadell is the protagonist—a 23-year-old medic who lost her entire family during the nuclear war and the journey to Haven. She earned the nickname "Death's Angel" because she stays with dying patients rather than abandoning them. She battles intense self-hatred, personified as an inner "beast," and initially refuses to form connections, believing she destroys everyone she loves. Her character arc moves from numb survival toward purposeful living. Learn more on her character page.

3. What does "Death's Angel" mean?

Dr. Kumar reveals that he gave Sasha the nickname not because she brings death, but because she protects life by staying with the dying when others flee. The name, originally thought to signify her association with death, actually reflects her core compassion and courage. See the Death's Angel symbol page for deeper analysis.

4. What is the relationship between Sasha and Tristian?

Tristian Hayes, commander of Unit Seven, persistently recruits Sasha over three years. Their relationship develops from mutual respect and tension into a passionate romance. Tristian sees past Sasha's defenses, and Sasha gradually learns to trust him. Their relationship is complicated by Burdon's manipulations, Tristian's guilt over his previous unit's betrayal, and Sasha's belief that she destroys those she loves. He is the first person she allows herself to truly want. See Tristian's character page for more.

5. What is Mission Hope?

Mission Hope is the classified objective of the Exploratory Force Units: to find hidden supply reserves left by Haven's creators before the underground city's resources run out. Haven has less than a year of supplies remaining. The mission is guarded by traps in a location called the Abyss. Only Command and the Exploratory Units know the truth; disclosing it carries severe punishment. Unit Seven ultimately succeeds in finding the bunker, which contains not only supplies but also the TABITHA pod.

6. Who is the antagonist in Beneath?

Force Commander Lyssa Burdon is the primary antagonist. She orchestrated the betrayal of Tristian's previous unit (Unit Thirteen, the Angels), staged a coup to seize control of the Force, and uses Sasha to manipulate and hurt Tristian. She represents institutional corruption and the abuse of power in Haven. Additionally, Henderson is revealed as a spy working against the unit from within. See Burdon's character page.

7. How does Beneath end?

The novel ends on an open note. Burdon captures Tristian and Sasha, forces Tristian to become her second-in-command, and reassigns Unit Seven to guard shack duty. Sasha is exiled back to Expansion. In the epilogue, she works furiously, rejecting mere survival and declaring she now lives for others. Kaleo, also exiled, proposes death as an option, but she refuses. The conspiracies remain unresolved, and Sasha has her own mission to pursue. For a full breakdown, see the Ending Explained page.

8. What are the major themes of Beneath?

Five central themes run through the novel: Conformity vs. Rebellion (Haven's oppressive systems versus individual defiance), Trauma and Healing (Sasha's journey through grief and self-hatred toward connection), Trust and Betrayal (navigating loyalty amid spies and double agents), Survival vs. Living (moving beyond mere biological existence toward purposeful life), and Power and Control (how authority manipulates information and resources). Each theme has a dedicated analysis page linked in the Themes section above.

Explore Deeper

  • Character Profiles — In-depth looks at Sasha, Tristian, Levi, Ingrid, Rumi, and Lyssa Burdon
  • Theme Analysis — Detailed exploration of the novel's five major themes
  • Symbol Guide — Analysis of Death's Angel, the Beast, the Key, and the TABITHA pod
  • Ending Explained — Full breakdown of the epilogue and unresolved threads
  • Questions & Answers — More common questions about the book
  • Quiz — Test your knowledge of Beneath
  • Essay Prompts — Writing topics for deeper analysis

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