The Wyvern's Spur. Finder's Stone Trilogy

A FORGOTTEN REALMS EPIC FANTASY ADVENTURE: Aided by a bard and a mage, an unlikely hero seeks to free his family from the curse of an ancient heirloom. More than a hunk of junk, the Wyvern's Spur has moldered in a crypt for fifteen generations-until now. The Wyvernspur family's powerful heirloom has been stolen, and its grand wizard and patriarch is the first to fall to the ancient item's curse. The family fool, Giogi, is left to find it, but even recovering the spur cannot guarantee his clan's safety.
Fortunately, the famous halfling bard Olive Ruskettle and a mysterious, talented mage named Cat are determined to help. But when betrayal and enchantment threaten Giogi's progress, he must invoke the spur's awesome might-or become its next victim.