Grab your gear and go

Since you've already got your jeans in your hand, you take a few seconds to pull them on, then stuff your pistol in your waistband. Opening your pack, you stuff your shirt and boots in. You'll have plenty of time to put them on later. Taking your multitool from a side pocket on your pack, you scramble onto the desk and frantically undo the screws to the vent cover, heart thudding as you hear muffled conversation on the far side of the door. As the last screw comes loose, there's a shout from the door.

"Since you're not coming out, we're coming in!" There's a sudden slam as one of the men attempts to kick the door in. Luckily, the lock holds, but from how the door shook, it's not going to last long. Swearing under your breath, you yank the cover off the vent, dropping it onto the desk, then grab your pack and attempt to shove it into the vent. It resists for a moment, then abruptly pops through the opening, as another kick crashes into the door. Swearing again, you hoist yourself into the vent face-down, pain flaring in your nipples as you drag them across the cold steel of the vents, bare toes scrabbling for purchase on the smooth wall of the room. Through a small gap between your pack and the wall, you can see where the vent takes a 90-degree turn about ten feet down from you.

As the vent swallows your legs, another loud crash announces the door finally giving way. You swear again. There's no way you'll make it around the corner of the vent before one of the men looks down the vent. In an act of contortionism to make Houdini proud, you manage to pull your pistol from your waistband, and roll onto your backside, as rough voices echo into the vent. "Where the fuck did she go? It's a fucking dead end down here." "Hey, the vent cover is off. Whaddya bet she's in the vents?" "Johnny, stick your head in there, see if she's up there." "You got it, boss."

While they're conversing, you press your bare back against the rough material your pack, pushing it farther into the vents, as you aim your pistol at the opening. At that moment, you're at once glad you both put your jeans on and left your boots in your pack. Your jeans make sliding down the vent much easier, and you're positive your bare feet have much more grip on the smooth steel of the vents than the hard rubber of your boots would have. Due to these factors, you're six feet down the vents before Johnny's bearded face appears, accompanied by the muzzle of an **** rifle.

"Foun-" Johnny's shout of success is cut off as you pause long enough to squeeze a shot off between your legs, the explosion of the round firing nearly deafening you as it echoes through the vents. A small, red hole appears in Johnny's forehead, and he topples, his face slamming into the edge of the vent with an echoing bang before falling from the vents. A voice shouts, "Jesus! Light that bitch up!"

There's only one thing that can mean. You redouble your efforts to push your pack down the vent, slamming into the back wall, then reaching behind you and forcing your pack around the corner and following it. As you do so, more gunfire erupts from the end of the vent, and your ears ring as the shots echo through the vents. Sparks fly off the back wall, and a round ricochets by your ear, punching a hole in your pack, driving you to move even faster. Moments later, the shooting stops.

Deafened as you are by the shooting, there's no way you can hear their conversation. While you doubt they'll send someone into the vents to follow you, you never know. What you do know is it's now pitch-black in the vents, and you're navigating by feel alone. As your pack bumps against another wall, you can feel a branch in the vents. One seems to angle up towards the roof, the other seems to head deeper into the mall.