Master and apprentice

"Luck has never been on Gavyn Donatti's side. Anyone else with magic abilities inherited from a distant genie relative would have it made, but not Donatti, descendant of a cranky, shape-shifting genie named Ian. The prince of a murdered kingdom, consumed with revenge and driven by an unbreakable curse, Ian is determined to hunt down and destroy every last one of his enemies in the power-hungry snake clan--at any cost, including his life. Or Donatti's ..."--Page 4 of cover.