The Voyage of the Dawn Treader
by C. S. Lewis
Lucy and Edmund and their terrifying cousin Eustace magically blend into a picture of a ship at sea. This ship is the conqueror of dawn, and on board is the king of Narnia, Caspian. He and his friends, including Repichip, a brave warrior mouse, search for the seven lost lords of Narnia, and their journey will take them to the end of the world. His adventures include admiring slave traders, meeting a very close dragon, and visiting many magical islands, including a place where dreams come true.