Chapter 35: The Rainbow Serpent's Secret – Ancient Knowledge Meets Modern Threat

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

Summary

At Kadir's desk in Jakarta, Gray finishes reading the handwritten account from the safe while Xue studies the accompanying sketches. The story continues from the previous chapter: after the Tenebrae burned, Stoepker and Matthew escaped in a tender, only to be struck by an earthquake that filled the sea with fiery, spiny coral balls. Over twelve days, both grew sicker. Matthew prayed to the Rainbow Serpents, drawing pictures and singing until he fell into a coma. That night, bioluminescent cephalopods—the Rainbow Serpents—rose and probed the boat with tentacles that left stinging welts. The welts seemed to counteract the coral's poison, but it came too late for Matthew; Stoepker died soon after.

Raffles and Crawfurd later sought out Matthew's people, the Kaurareg of the Torres Strait. They learned of a great Aboriginal ceremony near Sumbawa during Tambora's eruption that used bullroarers to appease the gods and calm the volcano. The elders shared the legend of the Rainbow Serpent, a god of the underworld who travels through thin spots in the earth's crust. One such thin spot is the Java Sea; another is a secret island far beyond all islands, the true home of the serpents. Crawfurd traveled there, studied the coral (which he named Perfidia lithiasis), and deduced that the spiny balls are a defensive mobile stage of the species, while the Rainbow Serpent is its mature form. The serpents use stinging tendrils to deliver a counteragent that neutralizes the coral's toxin.

Xue connects this to the present: the ELF transmission that triggered the crisis in 2020 may have been a distress call from a piece of Theia's crust. The recent loud ELF transmission from the mountains may have been interpreted as another distress call, prompting the species to send quakes and coral attacks toward China. He theorizes that the bullroarer's specific frequency is an "All Clear" signal that could stop the disturbance. Gray and Xue decide to test this at Mount Tambora, turning their truce into a full partnership.

Key Events

Gray finishes reading the account; Xue reviews the sketches.
The group learns of Stoepker and Matthew's ordeal: spiny coral balls, Rainbow Serpents, and the stinging welts that acted as a cure.
Kadir identifies Matthew as a Kaurareg Islander from the Torres Strait.
Raffles and Crawfurd investigate the Aboriginal ceremony at Tambora, which used bullroarers to calm the eruption.
Crawfurd's secret island is revealed through detailed sketches showing a volcano and reefs.
Crawfurd's study of Perfidia lithiasis demonstrates its life cycle: from polyp to floating mine to Rainbow Serpent.
Xue hypothesizes that ELF transmissions are distress calls and that the current tectonic activity is a response to a recent ELF signal from the mountains.
The bullroarer's harmonic frequency may serve as an "All Clear" to stop the threat.
Gray and Xue agree to test the theory at Mount Tambora; the truce becomes a partnership.

Character Development

Gray acts as the synthesizer, patiently piecing together the historical account and guiding the group's analysis. His willingness to entertain Xue's hypothesis shows his adaptability under pressure.

Xue emerges as the primary theorist, moving from silence to a clear, audacious explanation that connects ancient Aboriginal knowledge to modern geophysics. His admission of ignorance—followed by a concrete plan—demonstrates intellectual honesty and courage.

Seichan remains the skeptic, pushing back against untestable claims and hearsay. Her role keeps the narrative grounded and prevents the team from accepting legend uncritically.

Heng focuses on the medical angle, intrigued by the stinging tendrils as a potential cure. His questions drive the discussion toward practical applications.

Kadir is drawn personally into the story when he learns of his great-grandfather Stamford Raffles's involvement and the secret island. He listens intently but remains in the background, letting the experts lead.

Themes, Symbols, or Motifs

Harmonics and Communication: The chapter repeatedly emphasizes sound frequencies as a mode of interaction between humans and the ancient species—ELF transmissions, bullroarers, and the serpents' response. This theme unites geology, biology, and culture.
Hidden Knowledge: The Aboriginal legends, kept secret for generations, prove essential to understanding the crisis. The chapter suggests that indigenous wisdom may hold keys to modern catastrophe.
Life Cycle and Transformation: The coral's change from polyp to mine to serpent mirrors the story's own evolution from historical mystery to immediate threat. The interplay of poison and counteragent underscores nature's balance.
Partnership versus Truce: The shift from a temporary truce to a true partnership signals the merging of competing interests (Chinese, American, Indonesian) into a single goal, reflecting the global stakes of the plot.

Why This Chapter Matters

Chapter 35 serves as the narrative's fulcrum, linking the 19th-century backstory to the present-day crisis. It provides a coherent scientific explanation for the bizarre phenomena (fiery coral, quakes, ELF signals) that have driven the plot. By identifying the bullroarer as a potential "off switch," the chapter sets up the final act: a risky voyage to Tambora to test the theory. It also deepens the lore of the Rainbow Serpent, transforming it from a myth into a biological reality that can be studied and engaged. Finally, the chapter cements Gray and Xue's alliance, raising the stakes for the cooperative effort ahead.

Study Questions and Answers

What evidence does Crawfurd provide to support his theory that the Rainbow Serpent and the spiny coral are the same species?
Crawfurd's anatomical drawings show a series of iterations from an eight-limbed polyp to a motile spiny ball to a mature serpent with eyes. He also documented the serpents' ability to remove the spiny balls from the water, suggesting they control their younger forms. Xue concludes that the drawings demonstrate a single life cycle.
How does Xue connect the ELF transmission from the mountains to the tectonic activity heading toward China?
Xue notes that geologists observed quake vectors aiming from the Tonga Trench toward the Chinese coastline. He hypothesizes that the loud ELF transmission sent two weeks ago was interpreted as a distress call by the ancient species—similar to the one from the moon in 2020. The species is now ripping through the earth to reach the signal's source, causing destruction along the way.
Why does Gray agree to Xue's plan to test the bullroarer theory at Mount Tambora?
Gray sees the logic in Xue's harmonic hypothesis and recognizes that time is running out. With the threat homing in on China and global consequences looming, a direct test at the site of the historical ceremony offers the only chance to verify whether the bullroarer's frequency can act as an "All Clear." Their truce evolves into a partnership because shared survival now outweighs previous tensions.