Which Narnia book follows the Pevensie children through a voyage aboard the ship Dawn Treader?

The Voyage of the Dawn Treader follows the Pevensie children aboard the ship Dawn Treader.

C.S. Lewis's third published Narnia book appeared in 1952. Edmund and Lucy Pevensie return to Narnia with their cousin Eustace Scrubb and join King Caspian on a voyage eastward. The expedition searches for seven lords who were exiled by Caspian's predecessor and travels through a series of magical islands.

The title refers to the ship rather than to a person. Eustace undergoes one of the series' most memorable transformations when he becomes a dragon and later changes back. The novel is sometimes identified as the third Narnia story in publication order, although later editions may number the books according to their fictional chronology.