Sam Fisher- Railing AC Infiltration

  At the top of the loading ramp, he boosted himself onto the railing, then, with one hand braced on the wall, leaned forward until he could reach the defunct, car-sized air-conditioning unit affixed to the warehouse's back wall. Once he had a good grip on the unit, he stepped off the rail with his left foot and placed it on a flange jutting from the AC unit. He followed with his other hand and foot, then boosted himself atop the unit. From there it was a short climb up the utility ladder to the roof. Walking catfooted, he crossed the corrugated sheet metal until he reached the skylight; this, too, he'd already surveyed. He'd found it unlocked, but the hinges were squeaky, so he'd fixed them with a few squirts of silicone grease from a flip-top travel bottle. He lowered himself flat, pressed his ear to the sheet metal, and listened: laughter and, in the background, melodramatic martial-arts shouting and tinny movie music. Fisher lifted the skylight hatch until it rested against the roof, then slipped his legs through, feeling around until his right foot found a ladder rung. He climbed down a few feet, reached up, and closed the skylight, then climbed down to the floor. He was in a closet adjoining the bathroom.

- Conviction, Chapter 1