"This survival thriller is a masterclass in suspense." -A.G. Riddle, author of Winter World

When the lights go out, the fight to survive begins.
In the dead of winter, a terrorist EMP attack wipes out the U.S. electric grid. No power. No phones or cars. And no escape. Overnight, the nation descends into chaos.
For Hannah Sheridan, it's the best day of her life. After five years locked in an underground cell by a sadistic captor, the EMP releases the lock of her prison. She flees into the frozen wilderness with nothing but the clothes on her back and the fierce will to survive.
Ex–Special Forces soldier Liam Coleman thought he was ready for anything. He was wrong. The lights go out, planes fall from the sky, and in a matter of seconds, everyone he loves is gone. When he retreats to Michigan's remote Northwoods, he stumbles upon a terrified woman running for her life.
Together, Hannah and Liam must cross hundreds of frozen, lawless miles to reach safety. But the killing cold and desperate survivors aren't the greatest threats, for Hannah's captor is hunting them through the wilderness. And he's not about to let her go.
Kyla Stone is the USA Today bestselling author of more than 25 novels with over two million copies sold worldwide in several languages. Edge of Collapse is the pulse-pounding first book in the acclaimed apocalyptic survival series perfect for fans of SILO, The Last of Us, The Stand, and Station Eleven.