Of Spells and Demons — Kenneth McDonald

Something dark is stirring on the edges of the mage-kingdom of Sacreth. The ruling Mage Council, complacent and divided, is stirred to action by the attack of a rampaging demon on one of the valley's outlying settlements. The young but talented wizard Keric Olwyn is sent to investigate, along with a hand-picked team of elite Border Wardens, and a somewhat reluctant mountain guide. Armed with some of the most powerful magic that Sacreth's mages can provide, Keric and the Wardens must confront and overcome not only demons, but magic and treachery in their efforts to protect the people of Sacreth from the threat posed by the wizards of the mysterious Academy.