The Incomplete Enchanter — L. Sprague de Camp; Fletcher Pratt

IT COULDN'T HAPPEN

A twentieth-century scientist couldn't find himself hobnobbing with the gods of Norse myth...
You can't make a broomstick fly by chanting the right spell...
The beautiful girl you're chasing doesn't turn out to be made of snow...
Giants, enchanters, dragons, trolls, magical weapons and phantoms don't exist...
No...?

BUT IT DID---

--in The Incomplete Enchanter, one of the classics of modern imaginative writing--and one of the most hilarious stories ever written!