The night folds into a tighter knot after that. He is chased across rooftops by men who know how to move in angles—parkour practiced into a brutal dance of pursuit. He swings above subway vents and clobbers into water towers. One pursuer straps a grappling hook to his forearm, a crude imitation of the very tools Peter uses, and the two grapple mid-air in a ballet of flailing limbs and agile counters. He lands on a billboard like an actor hitting a cue, breath burning, lungs crying for air, heart a drumbeat in his throat. The prototype is hot in his pocket and colder in his mind: someone is weaponizing research meant for curing, for energy, for industry.