Sundial Ending Explained: A Spoiler-Forward Breakdown of Catriona Ward's 2022 Novel

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

The Ending in Brief

The novel's final movement converges on two fronts. At Sundial, Rob has lured her husband Irving to the desert with a calculated series of provocative text messages, intending to kill him. She empties the syringe containing the "click"—the purple liquid she was meant to use on Callie—and plans instead to inject air into Irving's heart. When he arrives, she stabs him in the eye and beats him to death, then buries him in the dog graveyard behind the picket fence.

Meanwhile, at Arrowood, Callie confronts Miss Grainger, who has revealed herself to be the witch—Callie's own mother, who swallowed the real Miss Grainger years ago. Miss Grainger has taken Jack as her daughter, transforming Jack's eyes into golden coins. Callie slashes the coins from Jack's eyes with her straight razor, restoring Jack's blue irises, and the two girls embrace, agreeing to fight together.

Back at Sundial, Callie delivers the novel's central twist: Annie never took the diabetes medicine. The medicine is hidden in the star lamp. Annie framed Callie for stealing and poisoning, and Callie took the blame to protect her sister. Annie planned to harm Mrs. Goodwin (Hannah). Rob and Callie drive through the night to Hannah's house, arriving after 2 a.m. to see the pink lamp lit in an upstairs bedroom. The novel ends there.

The Climax: Rob's Impossible Choice

Rob's plan to kill Irving is the culmination of her arc. She tells herself she acted because Irving was "not a good thing"—Callie had begun to reflect him, and Rob could not stand to see it. Jack's buried letter, which Rob carries with her, showed her another way: "Kids are mirrors, reflecting back everything that happens to them." The letter convinced Rob she could never give Callie the click.

Rob's method is deliberate. She answers the phone once in seventeen times, alternating defiance and capitulation to work Irving to a fever pitch. Her final messages—including "I'm a better wife than her"—are designed to provoke him into driving out to Sundial. She empties the click's purple liquid down the drain, an act she frames as a guarantee that she will never use it on her daughter. She plans a pulmonary embolism: a needle full of air to stop Irving's heart. In the event, the killing is messier—the needle slides into his eye, and she beats him. She buries him in the grave she had prepared, among the dead dogs.

Callie witnesses part of this. She had locked "Not-Mom" in her room after suspecting Rob meant to use the click on her, then hid in the jacaranda tree and watched Irving's headlights approach. She later crouches beside Rob as she fills the grave, holding the flashlight. Callie asks if Jack is still there, somewhere. Rob says no: "Jack is gone." It feels true for the first time.

The Twist: Annie's Deception

Callie's confession reframes the entire novel. She tells Rob that Annie did not take the diabetes medicine—it is hidden in the star lamp. During the drive to Hannah's house, Callie recalls how she helped Annie hide dead animals and kept their bones, how she knew Annie planned to harm Mrs. Goodwin, and how Annie framed Callie for stealing medicine and poisoning her. Callie took the blame to protect her sister.

This revelation recontextualizes the opening chapters. The backpack with animal bones, hydrogen peroxide, superglue, and the missing childproof cap—the evidence that convinced Rob to take Callie to Sundial—was not Callie's doing. Callie had been shielding Annie all along. The novel's final line finds them arriving in Cielo after 2 a.m., the pink lamp lit in an upstairs bedroom of Hannah's house. Whether they reach Annie in time is left unresolved.

The Arrowood Confrontation

Callie's arc at Arrowood mirrors Rob's at Sundial. After Jack rejects her following the dining-hall battle—where Callie slaps Little Annie and is accused of being the school thief—Callie sets a trap. She burns purple dog sage to lure Miss Grainger and Jack to the west tower, where the Uncouth Lower Ninth sleep. Jack arrives with golden eyes, claiming she and Miss Grainger fly at night and eat memories. Callie slashes the golden coins from Jack's eyes with her straight razor, restoring her blue irises. Jack realizes Callie used the girls as bait but forgives her. They embrace, referencing their bond: "Daughters are powerful magic"—but sisters are powerful magic too. They creep up the turret stairs together.

The confrontation with Miss Grainger is left open. We see Callie and Jack ascend, but not what happens when they reach her. Earlier, Miss Grainger revealed herself as the witch—Callie's mother—who swallowed the real Miss Grainger and took her place. She had offered to take Callie as her daughter, then chose Jack instead. Whether the witch is defeated at the tower is never shown.

Major Character Outcomes

Rob: Kills Irving and buries him at Sundial. She believes she has saved both daughters. The novel leaves her future uncertain—she is a murderer, again, and knows the desert "knows how to keep a secret."
Callie: Reveals the truth about Annie and takes responsibility for protecting her sister. She tells Rob, "It wasn't me" who hurt the animals, and Rob feels relief.
Jack: Confirmed dead. She died at Sundial years ago, killed by Twenty-Three, the dog with brain electrodes, while saving Rob and baby Callie. Rob has been keeping her memory alive—imagining her voice, her judgments. Her letter guided Rob's final choices.
Annie: Revealed as the one who hid the medicine, framed Callie, and planned to harm Mrs. Goodwin. Her fate is unresolved.
Irving: Dead, killed by Rob.
Miss Grainger / the witch: Her fate is ambiguous. She is confronted but not confirmed defeated.
Pale Callie: A presence that speaks to Callie throughout the novel. Her nature is never fully explained.

Resolved and Unresolved Threads

Resolved:

The click is emptied and never used on Callie.
Irving is dead, and Rob's plan succeeds.
Callie's innocence regarding the animals is established.
Jack's eyes are restored, and she and Callie reconcile.
The identity of Miss Grainger as the witch is confirmed.

Unresolved:

What happens at Hannah's house when Rob and Callie arrive.
Whether Annie is truly dangerous or something else is at play.
The nature of Pale Callie—whether she is a split part of Callie, a supernatural presence, or something else.
Whether Miss Grainger/the witch is defeated.
Rob's legal and emotional future after killing Irving.

Theme Resolution

The ending completes the novel's central thematic arcs. Maternal sacrifice and the logic of impossible choice reaches its peak in Rob's decision to kill Irving rather than use the click on Callie—she refuses the choice she was given and makes her own. Engineered violence and the question of inheritance is complicated by the twist: it is Annie, not Callie, who has inherited the capacity for harm, and the novel refuses to say whether that inheritance is biological or environmental. Memory as a constructed refuge is embodied in Rob's relationship with Jack's memory—she keeps her sister alive in her head until she can finally say "Jack is gone." Isolation as a crucible for truth plays out in the desert, where Rob's plan and Callie's confession both surface. And sibling bonds as mirror and trap is resolved in both pairs: Rob and Jack, whose bond ends in sacrifice, and Callie and Annie, whose bond is revealed as a trap Callie willingly entered.

The Final Scene: The Pink Lamp

The novel's closing image—the pink lamp lit in an upstairs bedroom of Hannah's house—functions as an epilogue of sorts. It is deliberately ambiguous. Rob and Callie have driven through the night, fearing they will be too late. Callie reflects that she will have to protect Annie for the rest of her life. The lamp is lit, suggesting someone is awake. Whether they find Annie, what state she is in, and what happens next are all left to the reader.

Reasonable Interpretations

The ending supports several readings. One is that Rob has genuinely saved both daughters and the family can begin again. Another is that Annie's violence is the true inheritance of Sundial—the witch's bloodline—and that Callie's protection of her sister will be a lifelong, possibly doomed, endeavor. A third reading emphasizes the novel's ambiguity about what is real: Pale Callie's nature, the witch's fate, and even the reliability of Rob's account of events are all open to question. The novel does not resolve whether the supernatural elements are literal or psychological.

Reader Questions

1. Why did Rob kill Irving?

Rob believed Irving was a destructive influence—Callie had begun to reflect him. Jack's letter convinced her she could never use the click on Callie, so she chose a different path: eliminating Irving. She lured him to Sundial with provocative messages and killed him, framing it as saving both daughters.

2. Was Callie really the one hurting animals?

No. Callie reveals that Annie was responsible. Callie helped Annie hide dead animals and kept their bones, and took the blame to protect her sister. The backpack Rob found belonged to this pattern of shielding.

3. What is the "click"?

A syringe containing purple liquid, intended to "change" Callie into a different daughter—to prevent her from becoming like Jack or the witch. Rob empties it down the drain, choosing never to use it. Callie later discovers the syringe is empty, which shifts her understanding of her mother's intentions.

4. Who is Miss Grainger?

Miss Grainger is revealed to be the witch—Callie's mother—who swallowed the real Miss Grainger years ago and took her place at Arrowood. She has golden eyes and can transform into a great golden dog. She took Jack as her daughter before Callie restored Jack's eyes.

5. What happened to Jack?

Jack died at Sundial years ago, killed by Twenty-Three, the dog with brain electrodes, while saving Rob and baby Callie. Rob has kept her memory alive through imagined conversations and her buried letter. The letter—"Snoopy's secret"—guided Rob's final decisions.

6. What does the ending mean—the pink lamp?

Rob and Callie arrive at Hannah's house after 2 a.m. and see the pink lamp lit in an upstairs bedroom. The novel ends before they enter. The image suggests they may reach Annie in time, but the outcome is deliberately unresolved. It leaves the reader to imagine what follows—and whether Annie can be saved.

For a broader overview, see the main Sundial page, or explore the character guide for Rob, Callie, Jack, Annie, Irving, and Pale Callie.