John Wallace is an undead found on Undead Island. He was a pirate killed in the battle and buried on the island. He somehow broke free from Jolly Rogers curse but still takes the form of a skeleton. He wanted revenge on Jolly for his death so, he helps all the living he can find escape the island or teaches them about fighting Jolly Roger. If you help him clear a path for living to escape Undead Island, he may provide you with information that will help you on your mission to Undead Island.