Tower of Horn and Blood — Thomas K. Carpenter

The battle for the Hundred Halls begins now.Trapped in the city as a horde of demons invade, our team of mages have one last chance to save the world. With the city in chaos, and friends and family in peril, difficult choices multiply at every turn. The mages of the Order of Merlin and their allies must be willing to make the ultimate sacrifice to defeat the demonic invasion before their overwhelming advance puts an end to their world.