Brianna nods curtly, and shifts her grip to haul Philippus to her feet. Juliet follows suit.

Windows above a certain floor level in Manhattan aren't supposed to open wide enough to admit a human being through, for safety reasons. Unless they open onto a fire escape, which this one doesn't -- the fire escape is some yards away, accessible through a different room.

All that means is that somebody's going to have to get the glass replaced tomorrow.