The Once and Future Idiot

Erlin, the cleverest man in Albion, is keeping a secret: there's no such thing as magic. This doesn't stop him from enjoying a comfortable job as the king's inquisitor, where he pretends to keep the kingdom safe from witches, warlocks, and anything else that frightens the superstitious people of Tomelac.

Erlin's carefree life falls apart when he's ordered to tutor Prince Garth, a clueless boy who has never learned a thing. When Erlin uncovers a plot to assassinate the prince, the two of them...