Gerald and the amulet of Zonrach
Looking for promotion of an inch or two, Gerald attempts to create a village landmark using his superior wizarding skills. But the spell he bought - from a guy who knows a guy - is a tad more powerful than he anticipates. The resulting earthquake breaks off a chunk of Wyverndawn from the rest of the realm allowing Vabalaz, a highly dangerous wizard, to escape from prison.
A red-faced Gerald is banished from his village and, to complete his shame, is demoted another inch; two more and he's likely to become a Royal Equine Poop Disposal Coordinator. Gerald's questionable acquisition of a certain golden amulet could be the answer to his problems. But when Vabalaz discovers it may also be the key to creating his elite wizard realm, Gerald is elevated to evil wizard's enemy number one.
Gerald's hopes of returning home hinge on repairing the damage to Wyverndawn and thwarting Vabalaz's plans. Failure could mean Gerald's next spell might well be his last.