Combined Forces (A Percy Jackson/The Mortal Instruments Crossover)

In this exciting new book, Percy Jackson and Annabeth Chase find themselves in the shadows of a strange building. Venturing inside, they are greeted by the shadow hunters: Jace, Clary, Alec and Isabelle along with Simon but what surprises them most of all is that Nico appears to have ended up there as well.
What happens when an enemy arrives at the scene? Lives and love shall be lost in this thrilling crossover. Get ready for the ride of your life...