At three in the morning, he stumbled upon the sec…

The whole accident began with a sudden party thrown by the mothers. When Dashiell Grey, Su Mu, and Leng Yan were each pushed into the living room by their own mothers, Seraphina Locke was standing at the kitchen doorway holding a tray of freshly baked cookies. No one imagined that this girl, whose eyes crinkled when she smiled, would, above a deserted park at three in the morning, whip out a black lash that could split the night sky wide open. And when a bullet tore through the air and pierced her shoulder, the three boys finally understood—the secret she carried was far greater than anything that park could hold.