What is your favorite book title? (Not to be confused with "what is the title of your favorite book?")

Regardless of the quality the content (or if you've even read it), what is the best title for a book you've ever seen? Optional: explain why.

Mine is "The Son of Summer Stars" - the book was published in the late '90s, so long before the current trend of star-related titles in YA fantasy/sci-fi, so it struck me as unique and evocative at the time. It was the third in a trilogy, and I read the entire trilogy just to see why it was titled that way (funny enough, the other two were far superior story-wise).