What if the thing that saves your child opens a door you're not ready to walk through?

When author and journalist Bennett Carlton takes his young family to a London park, he doesn't expect to watch his four-year-old son vanish beneath the cold surface of a lake. Nor does he expect the mysterious woman who rescues him—a stranger who moves through the water like she belongs to it.
Charlene "Charlie" Morrow is a psychiatrist with a past she doesn't talk about and a gift she tries not to use. But the lake doesn't care about her boundaries. Neither does the whisper of a little blonde girl who never came home.
As Bennett begins to investigate the woman who saved his son, what he uncovers pulls his family into a deeper mystery—one tangled in memory, trauma, and something colder than reason. His wife, Susan, starts to question whether their son truly survived untouched. And Charlie must confront the darkness she thought she left behind, where sixteen voices still scream beneath the snow.
Haunted by past cases and a killer who knows her all too well, Charlie is about to learn that some lakes keep their secrets. Others will never let you go.
A gripping tale of second sight, submerged memory, and the choices that shape us.