July, 1985. It's a normal, sweltering New Jersey summer for soon-to-be seventh grader Bee Kocsis. Her thoughts center only on sunny days spent at Deer Chase Lake, evenings chasing fireflies around her cul-de-sac with the neighborhood kids. But when Max's little sister Sally goes missing at the lake, Bee's long held illusion of stability is shattered in an instant. The story of an idyllic childhood ruptured by secrets, the way that split-second decisions can have reverberating impacts, and the damaging impact of rivalry between siblings, which is only matched by the enduring love.