When Sylvia went to check on Muriel, she was surprised to find that she was gone. Where could she have gone? Sylvia grew concerned and so she investigated the room, only to find that there were no struggle, and there were...black feathers near the window? 

...Was it possible for people to turn into animals here? Sylvia wasn't sure, but she couldn't think of any other explanation for the feathers and the lack of a fight...

She tries looking outside through the window to see if she could see anything, or anyone, nearby the house.

Now that she thought about it, wasn't there a trap door in the house as well...? Sylvia considered investigating beyond the trap door as well.