Zatch Bell!

I Won't Go Back! Laila's Dark Solitude (2x28)

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Kanchome uses "Poruk" to hide the team. They plan to recruit Penny to their side by getting Zatch to make up with her. It works until Penny asks Zatch about marriage, and he declines the proposal. Laila reveals that if she steps out of the moonlight, she will turn back to stone. Kiyo tells her that Zofis cannot turn anyone into stone, proven when Zofis had burned Pamoon's book instead of turning him to stone. Kiyo realizes that Zofis was implanting illusions of petrification for the thousand-year Mamodos and informs Laila. He tells her the moonstone is also a tool used by Zofis to psychologically control the Mamodos and is used with Zofis' mind-control ability. Laila attempts to leave the moonlight, but she finds her hand turning to stone. She admits she knows it's an illusion and leaves the moonlight. Laila's mind believes she has become petrified and her body becomes petrified. Her mind-controlled partner, Albert sheds a tear, freeing Laila from Zofis' illusion.