Metal Sonic's free time part 2

The ground exit brought me to the bicycle rack sector. Near the concrete pillar stood an upright commuter frame with a taut drivetrain. The derailleur cage was locked mid-pivot, suspended on a dry link. I gripped the lower jockey wheel with both hands, aligned my posture against the spoke rim, and exerted calculated downward torque. The frozen roller snapped cleanly into place. With a rapid flick against the pedal arm, the link smoothly caught the steel cog teeth, spinning in fluid, silent rotation. Line verified.