Alexa thought uncovering the truth about her past would finally set her free.

She was wrong.

Beneath the hospital, a buried facility holds secrets that were never meant to be found-glass chambers, forgotten experiments, stolen memories, and the remains of children whose identities were erased long ago. Alexa soon discovers that her connection to the mysterious force beneath the lake is far older and far more terrifying than she ever imagined.

And Lily is not who Alexa thought she was.

As memories begin returning in fragments, Alexa is forced to question everything she knows about her childhood, her family, and even her own existence. Who was the original? Who was the replacement? And why have powerful people spent decades trying to keep Alexa from remembering?

Then Alexa finds a girl behind the glass.

A girl with her face.

A girl who knows her name.

A girl who has been waiting for her to come back.

Now the people responsible for the experiments are closing in, and the thing beneath the hospital is beginning to wake. To survive, Alexa must descend into the place where her story began and uncover the truth buried beneath the lake before those who created the experiment can take control of her again.

But the deeper Alexa goes, the more terrifying the truth becomes.

Because some memories can be stolen.

Some lives can be replaced.

And some things that were forgotten were never supposed to stay dead.

The past is calling Alexa home.

And this time, something is waiting for her.