Peter wanted to find out what Molly was keeping from him, but she keeps finding a way to get around telling him. So Peter figures out how to get her to tell him, but now the pirate Black Stache is after them. Then he finds out what was in the mysterious trunk Molly had on board.
This book was okay. Not one of my favorites, but I think the authors did a good job of telling the backstory. Although some of it was just shoved together and it was confusing. Also, parts of it didn't explain everything I wanted to know, like how the lost boys from the original Peter Pan end up on the island.