Three teens. Disaster in a mysterious desert. And the next morning…a return to their ordinary lives with everything just as it was before. Or is it

When Kaida Hutchenson and two of her classmates fall through a cave in New Mexico, they are plunged into a frightening parallel universe in which their normal worlds of family and high school remain the same…except for the fact that no medicine exists. As they try to help the people in this world survive, they must figure out how to make it home-before it’s too late.

Faye Kellerman and Aliza Kellerman are a dynamic mother-daughter team who have created a suspenseful, high-concept thriller readers won’t be able to put down.

Extras Inside: An interview with Faye and Aliza, a look inside their writing process, and more!