Amazon offers Marvel Little Golden Book Library (Marvel Super Heroes): Spider-Man; Hulk; Iron Man; Captain America; The Avengers for $13.49 . Eligible for free super saver shipping.

Product Description:
Join Spider-Man, Hulk, Iron Man, Captain America, and the Avengers on their heroic adventures in this boxed set that includes five Marvel Super Hero Little Golden Books! It's the perfect gift for children ages 2 to 5