Vanessa is being followed. She doesn't know by whom, and she doesn't know what they want. But she knows why.

Vanessa has a secret. She can become invisible, but the problem is, she can't control it. And her worst fear is being discovered.

Only her best friend, Catty, knows, and Catty is different as well. She can travel back in time — and take Vanessa with her.

The Key of Credence is the first of five books in The Seven series. It tells the story of Ryan and her friends, whose simple curiosity leads to a multitude of problems. This book invites readers to experience an entirely new and different world—one that involves the Heavens and the Helles. Most importantly, it illustrates how the humans themselves, and the innate goodness of their souls, can create a huge difference in just about everything.