Edinburgh Festival Fringe 2026 | Assembly Rooms Seven acrobats. Thirty metres of rope. Two pulleys. That's essentially all One Fell Swoop Circus need to create one of the most impressive physical performances at this year's Fringe. By a Thread takes an incredibly simple setup and spends an hour finding increasingly ridiculous things to do with it. The performers climb, swing, tumble and hang several metres above the stage, relying not on elaborate machinery but on the weight,