[Sayo had intended to tell a spooky story about Akujikishima, to get under Ozpin's skin with a tale of the witch. The way he reacted to her request to hear a witch story made it obvious it was a sore spot for him. But Sayo was too much of a storyteller, got too wrapped up in the fairy tale she was making up on the spot, and now she's tipped her hand.

...although... she could use this to her advantage. Ozpin has to be wondering who stuffed a gun barrel into his mouth a few mornings ago. Perhaps she can redirect his suspicions to an illusion.

Shannon fidgets at the question, glancing nervously away from Ozpin.]

W- Well... like I said, she found someone dumb enough to make a contract with her. To free her by shattering the mirror. She still wasn't strong enough to manifest on the material plane without help, though, so...