Bee-Man Of Orn by Stockton Frank R.
The Bee-man is happy with his lot, until one day a Junior Sorcerer gives him some disturbing news. The Bee-man, he says, has been transformed: he was once something else. But what? A giant or a prince perhaps? A dog or a dragon? With a hive on his back and a cloud of bees about him, the Bee-man sets out on a quest to discover the answer...