Spikes on ballet shoes

Exploration Stage: Ballet Academy
From: Huntress
Description: Juliette had fallen into equipment at the "ballet academy". But how could she escape? Juliette remembered that she had picked up something sharp and strange in the garden. She had put it on her ballet shoe. But why? Find it.
Completed: Juliette used to wear "spikes" on her ballet shoes. If you put this on, even if an unknown force made you put on ballet shoes and dance while you were asleep, the pain of stepping on the spikes would wake you up.