Herbert leads their makeshift army through Ratbridge toward the Cheese Hall, but when they arrive, Snatcher and his dudes are gone already.
Marjorie is there still, though, and she explains that they've put Framley in massive iron armor that makes him almost unstoppable.
Arthur asks if they used the same iron that Herbert's boots were made of, because if so, he has an idea.
Quickly, Arthur explains about the magnet in Herbert's cell that would immobilize him if he acted up… Maybe they could use the same idea to stop Framley?
Marjorie thinks she can adapt the magnet to be powerful enough to draw Framley in his armor back to the Cheese Hall; the boxtrolls help with some of the mechanics, and the pirates work on getting the beam engine ready to go.
When they get the magnet switched on, it immediately starts attracting every piece of metal in sight. It's a pretty strong magnet.