S4·E8 Phantom's Dream

MÄR learns that Poko has found an underground entrance to the island, and they take his whale to enter undetected. Meanwhile Alviss is on his way to see Phantom. Rolan doesn't trust Alviss' change in heart and tried to prevent him from meeting Phantom. Once Alviss meets Phantom, Alviss begins to feel drawn towards the dark side. He quickly attacks Phantom and tries to insert the key into Phantom's chest, but Phantom is too powerful and easily stops him. The episode ends with Alviss on a chain leash that Phantom is holding.