She examines the windows, all of which are closed, and all but one of which are so thoroughly painted shut that she estimates it would take a carpenter three very expensive hours and a fair number of tools to open one. The one that has been opened, no doubt by that same expensive carpenter, is presently secured by a pair of mirror-world sash bolts, their hidden tongues to be extended and retracted by a sort of key-like wrench or driver, with an oddly shaped head. She has seen these used in London before, and has no idea where Damien keeps his. Since this can only be done from within, and the glass is intact, she rules out the windows as points of entry.