My Son, the Wizard - Christopher Stasheff - Bog

A WORLD OF TROUBLES - TIMES TWO!
Matt Mantrell -- Her Majesty''s Wizard -- conjured himself from magical Merovence to Jersey City for a long-delayed visit to his parents. Back in his hometown vicious, drug-dealing gangs had reduced Matt''s old neighborhood to a wasteland, driven his father out of business, and forced his parents to the brink of destitution and homelessness. The only answer was for Matt to transport them -- permanently -- to Merovence.
But once back in that realm with his parents in tow, Matt found that Merovence and the neighboring Kingdom of Ibile faced imminent subjugation by the conquest-hungry Moors. As Queen Alisande led her army to engage the enemy head-on, Matt launched his own campaign -- with the aid of his fledgling wizard father, the faithful dragon Stegoman, and a hapless tag-along thief. Grappling with djinnis, matching wits with a Moorish military genius, and trading spells with sinister sorcerers, they sought to root out the real enemy behind the mayhem: a cunning and deadly wizard who served the most evil master of all . . .