In Probability Angels, we were introduced to the world of Matthew and Epp. Back then, Matthew thought he had his hands full just learning how to be an undead tester of humanity, but then Hector staged an uprising and everything Matthew thought he could take for granted fell apart. Yet, over the past few months, a strained peace has settled over his world and Matthew is starting to feel like he can finally get back to training at his usual New York haunts. However, things are more fragile than they appear. Nobody can see the stress lines already clawing away at the new peace. Nobody has guessed the toll that was taken on those at the forefront of their war. And, when a new tester wakes up with the power to possibly unravel the universe...well that's when things really start to get interesting. Come see how a zombie can protect and serve, a photographic memory can earn you a permanent place on Mount Everest, and a teenage drug addict can hold everyone's fate in her nail-bitten fingers.