Aliens meets Under the Dome in this new post-apocalyptic novel from New York Times bestseller Lilith Saintcrow.

It could have been aliens, it could have been a trans-dimensional rift, nobody knows for sure. What's known is that there was an Event, the Rifts opened up, and everyone caught inside died.

Since the Event certain people have gone into the drift... and come back, bearing priceless technology that's almost magical in its advancement. When Ashe -- the best Rifter of her generation -- dies, the authorities offer her student, Svinga, a choice: go in and bring out the thing that killed her, or rot in jail.

But Svin, of course, has other plans...

How far would you go and what would you risk to win the ultimate prize?