Clockwork (Chapter 10): Summary, Analysis, and Key Themes

⚠️ 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

Typhoon Nalgale sweeps through Busan in early August, flooding the city and canceling summer school. The salvage yard near the school becomes a mud pit, and the abandoned train where the children have been hiding out is partially submerged. When Ruijie returns to school on Wednesday, she notices the transformation and, at lunch, leads her friends Mars and Amelia to check on Yoyo, the robot they've been visiting.

Inside the flooded train, they find Yoyo curled up, unresponsive. Ruijie presses her ear to his back and hears a faint mechanical hum, concluding he's simply out of battery. The children try to move him outside so he can charge in the sun, but he's surprisingly heavy. Amelia slips and gets a nosebleed, and Mars suggests summoning Taewon, a classmate who has been avoiding them since he first saw Yoyo. Taewon arrives and offers to bring a cart from the cafeteria. While they wait, Ruijie sketches Yoyo in her journal, noticing the triangle of moles on his cheek.

Taewon returns with a cart, but before they can move Yoyo, his uncle Wonsuk—a salvage-yard scrapper with one arm—appears. Wonsuk dismisses the children's presence and, after kicking Yoyo outside, discovers that the robot begins charging in the sunlight. He claims Yoyo as his find and tries to load him onto the cart. Taewon shoves the cart away and confronts his uncle, insisting that Yoyo has an owner. The national anthem blares from the factory speakers, signaling the end of the shift, and Wonsuk reluctantly leaves. As the anthem plays, Yoyo's eyes briefly open before he falls back asleep.

Key Events

Typhoon Nalgale floods Busan, canceling summer school and turning the salvage yard into a mud pit.
Ruijie, Mars, and Amelia find Yoyo unresponsive in the flooded train and determine he's out of battery.
They attempt to move him outside for solar charging but struggle with his weight.
Taewon arrives and offers to bring a cart, breaking his silence with the group.
Wonsuk discovers them, kicks Yoyo outside, and sees him begin to charge.
Wonsuk claims Yoyo and tries to load him onto the cart, but Taewon shoves the cart away and confronts him.
The national anthem plays, signaling the end of the factory shift, and Wonsuk leaves.
Yoyo's eyes open briefly before he falls back asleep.

Character Development

Ruijie shows growing protectiveness and empathy. She hesitates to touch Yoyo's hair without permission, reflecting her sensitivity to how people treat her own robowear. Her sketching of Yoyo suggests a deepening connection.
Taewon reveals hidden loyalty and courage. He has avoided the group since first seeing Yoyo, but he steps up to bring a cart and then defies his uncle, speaking in his native North Korean dialect with a menace that surprises everyone.
Wonsuk embodies the adult world's distrust of robots. He cites his missing arm and a recent factory death as warnings, treating Yoyo as a commodity rather than a companion.
Mars continues his playful theorizing about Yoyo, calling him a spy or a rebellion leader, while Amelia remains practical, comparing Yoyo unfavorably to her nanny Lina.

Themes, Symbols, or Motifs

Clockwork and Routine: The chapter's title and the national anthem playing twice a day