Time's Beginning — Dan Rix

A rip in spacetime grows at a terrifying speed, and humanity can do nothing to stop it. In five and a half months, it will swallow earth. The two telekinetic teenagers who might have halted the hole's spread are gone, cut out of the universe; Gabriel and Raedyn face eternity in a nuclear fallout shelter drifting in limbo -- endless curving hallways, abandoned lounges, swimming pools still as glass. But when their crew begins vanishing one by one, they realize they're not alone in their private hell. At night, an invisible creature hunts them. Something's getting into their food, shadows skitter behind corners, footsteps creak in empty rooms. In the morning, they find claw marks burned into the walls . . . and the leftover body parts. Now, facing her worst nightmare yet, Raedyn must outwit a demon before it wrests away the last of her soul -- and devours them all. Racing a ticking clock, Gabriel must exploit the ultimate loophole in bubble logic . . . before they and all existence collapse into oblivion.