1. Begin on Skullduggery Island, and sail to Poseidon's Palace for the labyrinth challenge.
2. Enter the labyrinth, and navigate through the maze. You'll encounter many obstacles, traps, and mythical monsters.
3. On your way, you'll find the minotaur. He is a powerful and aggressive creature.
4. To fight the minotaur, you need to use your battle skills. Defeat the minotaur.
5. After defeating the minotaur, you will be rewarded with the Ring of Minotaur. This is a valuable item that you can use later in the game.
Remember, the Labyrinth challenge in Skullduggery Island can be tricky, so be patient and use your wits to overcome the challenges within the maze.