Dragon Island

Dragon Island was an island located far from the Lone Islands in the large bodies of water beyond the Lone Islands. Dragon Island was inhabited mostly by wild goats, and herds of wild swine. It has also a mystery of how Lord Octesian died there.

History
The Seven Lost Lords went there as one of the many islands they visited. One of the lords, Lord Octesian, died on the island, either having turned into a dragon (after finding the Dragon treasure that was on the island) or killed by a dragon.

Later Caspian X and his friends discovered the island, when Caspian was on his voyage to the end of the world. Eustace, upon discovering the Dragon treasure, turned into a dragon. The crew of the Dawn Treader did not know what to do with the dragon, untill Aslan turned Eustace a human once again. The crew of the Dawn Treader, once reunited with Eustace, sailed away from Dragon Island.