The Golden Compass meets the digital age When a coding star enters an elite technology academy, she discovers a world of competition, intrigue, and family secrets--plus a robotic companion that isn't what it seems.

Lacey Chu is a girl who codes. She has always dreamed of working as an engineer for MONCHA, the biggest tech firm in the world and the company behind the "baku"--a customizable "pet" with all the capabilities of a smartphone. But when Lacey is rejected by the elite academy that promises that future, she's crushed.

One night, Lacey comes across the broken form of a highly advanced baku. After she repairs it, the cat-shaped baku she calls Jinx opens its eyes and somehow gets her into her dream school. But Jinx is different than any other baku she's ever seen...He seems real.

As Lacey settles into life at school, competing with the best students in a battle of the bakus that tests her abilities, she learns that Jinx is part of a dangerous secret. Can Lacey hold on to Jinx and her dreams for the future?

"With a sharp eye toward the rising awareness of device addiction and a keen sense of wonder, McCulloch's tale is a feast for the imagination that celebrates women in STEM fields."--Publisher's Weekly, STARRED review

"I raced through this book...a little bit Golden Compass and all adventure."--Amie Kaufman, New York Times bestselling author