The Sorcerer's Army (The Gryphon Chronicles, Book 8)

A Dark Future... When Lord Wyvern's outrageous rebellion succeeds, the half-demon sorcerer now sets his sights on world domination, accepting nothing less from humans and magic-kind than total obedience. The Order of the Yew Tree - humanity's best hope of stopping him - has already been brought to its knees. Jake and his friends, meanwhile, have been left shattered and reeling after a devastating loss. But then, a gift from a mysterious friend changes everything - a sword unlike any other. ...