"I'll be back in fewer than that with more food; just trying to provide privacy for the drawing. Why is that important, anyway?"

If she's going to be in here for long, there's another unpleasant consideration.

"If fairy sorcerers still need to use garderobes, the one attached to the room you used last night will be safest. You may, making sure nobody sees you or otherwise finds out you exist, leave for short amounts of time to use the toilet. Since I didn't think to install an outhose in the hidden entrance to the prison of the god of destruction."