In what reads like an homage to Mark Twain’s A Connecticut Yankee in King Arthur’s Court, Poul Anderson time loops WWII anti-Nazi espionage with an alternate universe that is straight outta ultra-imaginative D&D.

A full year before The Fellowship of the Ring was even published Poul was delivering page after page of elves and trolls and fire-breathing you-know-whats. His reluctant protagonist is, quite literally, a time traveling knight in shining armor who embodies every cliché in the genre. If your happy places happen to be Hogwarts and Isengard and Camelot, this is probably your book.