Lucy and Edmund Pevensie, along with their cousin Eustace Scrubb, return to Narnia aboard the royal ship Dawn Treader. Their quest: aid King Caspian in seeking the seven lost Lords of Narnia. Journeying across enchanted seas, they encounter:
Island of the Dufflepuds—invisible, curious creatures
A dark, foreboding pool that erases memories
A fiery dragon guarding a treasure
The mystical Caspian’s Grief and the far horizon