Gregor and the curse of the warmbloods

A plague is sweeping through the Underland, bringing fear and misery to the creatures of the realm. As the disease runs rampage, Gregor returns to help in any way he can. But when the sickness claims one of his own family, he begins to truly understand his role in the Prophecy of Blood. Only he can end the biological warfare that threatens to overturn the world, destroying everyone and everything in it. The future of all warm-blooded creatures is in his hands…