He-Man and the masters of the universe

"Fresh off of gaining their newfound powers of Grayskull, and fighting off a whole host of villains, our heroes--Adam, Teela, Krass, Duncan, and Cringer--face their most daunting challenge yet: spending their first night in their new home, Castle Grayskull! Can the teens safely settle in or will this mysterious castle get the better of them? Includes secrets about the masters of the universe origin stories!"--Provided by publisher.