Gravity's Shadow

The walls curved as the Wave Drive engaged. Briar braced herself, trying to cope as the Wave grew and grew and grew. She'd never been on a spaceship with a Wave this strong.
Too strong. The Wave thundered around her, warping reality along with the gravity of the universe as they flung themselves across the galaxy. Why didn't anyone else see how close they were to destruction?
Gravity's Shadow takes you along as destruction hovers just out of reach.