Chapter 5 of Dark Isle follows Rowen and his journey in the Dark Isle. After swimming ashore, Rowen and his friend Maggie are taken in by a mysterious old man, Eduardo. They learn that Eduardo and his daughter Maria survive on the island by trading with the locals. Rowen and Maggie also learn that Eduardo is a powerful wizard and can help them with their quest. They discover a clue that leads them to an ancient tower, but their path is blocked by an evil creature called the Black Mountain. When they try to get past the beast, they are saved by the magical abilities of Eduardo. They then enter the tower and find the secret that will save the Dark Isle.