The wolf heard the sound of a gulp from outside, and peeked out the window at the dog, who had obviously just swallowed whatever poor person it had been playing with a moment ago. Needing no more incentive than the thought of ending up in that massive stomach the wolf tugs on his makeshift grappling hook, and feels a satisfying clunk as it falls into one of the spaces between the boards that make up the shelf. Smiling he quickly ties the other end off to a piece of the window that's jutting out and then jumps onto the rope so that his back is to the floor and starts to make his way quickly across, hoping to get to the shelf before the dog get's into the castle.