Whenever they wake, Frisk's...been around. They're not close, but where there were broken vases and the like down the hall, they've been pushed to the sides where they'll be harder for passerby to step on.

They're not far, but not exactly announcing their presence either. They originally hid on the window to be alone, and even though they're concerned for them, they still don't want to be put on the spot. It's a compromise in their head; if they're called for or searched for, they'll be found, but if they're not, then they'll get their peace.