Draftsmen can't fight dragons.

Then again, that's usually no problem - they generally don't have to. But Lafayette O'Leary does. When an accidental overdose of self-hypnosis wrenches him out of the dull (but safe) Mrs. MacGlint's Clean Rooms and Board and deposits him in the feudal, bedragoned world of Artesia, it takes him a little while to catch on, even with the attentions of the beautiful Princess Adoranne. Then he decides that he likes this new life of his - except for the part where he's supposed to get killed...

Keith Laumer