Pure adventure: 'The Princess Bride' by William Goldman. The 'abridged' version he presents is a masterstroke. The story itself—true love, pirates, giants, swordfights, rodents of unusual size—is a classic, swashbuckling romance. But Goldman's witty, intrusive narrator's asides about cutting the 'boring' parts actually creates a hilarious, meta pacing.
You get the thrilling story, but with the constant, funny promise that you're only getting the good bits. It's endlessly quotable, heartfelt, and moves like lightning because, according to the narrator, all the slow parts have been mercifully removed for your enjoyment. It's clever and completely engaging.