"The canvas is for the life you want. The iron is for the world that won't let you have it."

For three years, Leslie Chan has been a ghost. She traded the rain-slicked industrial docks of Tacoma and a blood-stained Louisville Slugger for the quiet life of an art student it Seattle. She thought she was free from the family legacy of technical violence. She thought the "Lullaby"—the girl who could find the "off button" on a two-hundred-pound man with surgical precision was finally buried.

But safety is a fragile bubble.

When Nathaniel Hobbes, a billionaire with a predatory vision for the Tacoma waterfront, targets Leslie's family, the sketchbook isn't enough. After her uncle is left broken in the ICU and her friends are pulled into the crosshairs of elite professional "cleaners," Leslie realizes that some debts are paid in blood, not ink.

Accompanied by a fashion major who is a master of high-stakes distraction, a digital marketing expert who can bluff a shark, and an architect who knows the city's hidden geometry, Leslie must navigate a treacherous path from the gritty underworld to the sterile heights of the Pacific Nexus Tower. To save her found family, she must break the glass of her past, reclaim her signature weapon, and show Hobbes that a glitch in the system can be lethal.

Experience a visceral, technical reality where situational awareness is the only rule and the line between discipline and violence is razor-thin.