Why is “balloon” in quotation marks? I need to know what he actually used instead of balloons. I also need to know how he trapped people.
He took a bullock’s intestines, cleaned them thoroughly from within so that only the rubbery exterior remained: an intact, elastic empty tube. He tied one end to a blacksmith’s bellows, then inflated the tubes to such an enormous size that the person he had duped into watching his ‘experiment’ would be trapped in a corner of the room by the balloons.
Source: Ultra Facts