The Guardians' powers are given the ultimate test as they journey to the moon itself in this fifth and final chapter book adventure of an epic series from William Joyce.

The Guardians came together to protect the childhoods of all who dream, and they are a formidable team: Nicholas St. North, E. Aster Bunnymund, Toothiana, the Sandman, Nightlight, and Katherine have thus far prevented Pitch from fulfilling his nightmarish plans.

But Pitch and his nightmare men lurk on the fringes, gathering strength, stewing in hate, and the Guardians know their guard needs one more member if they are going to vanquish Pitch for all eternity. And once they find the last in their band, they'll travel to the secret realm of the Man in the Moon, encounter armies of Moonbots, and face the greatest battle since the Golden Age; and that is just the beginning of this grand conclusion to a series most grand.