For twenty years, Mia and Lucas have been inseparable the only two survivors of a devastating school bus crash that killed twenty-three children. Bound by a blood-soaked pact never to speak of what really happened, they built a quiet life together in their creaking riverside house.
But as the twentieth anniversary approaches, the last remaining witnesses begin dying in intimate, horrifying ways. When the evidence points directly at Lucas, Mia is forced to confront the unthinkable: the boy who once dragged her from the burning wreckage has been patiently orchestrating every death.
Worse she helped him.
And the river is still hungry.