Fox's Tail
It was no surprise that the lovely smelling fog had begun pushing its way through the cracks in david's doorframe and up through the air duct above his bed.
The Storm Wolf: Tranquil waters - chapter 5 - Roses and Violets 5.5
There were hidden doors that blended seamlessly with the walls, disused maintenance tunnels that looked like they hadn’t been touched since they were built, and we even crawled through an air duct for a good stretch. “this is really… achoo!”
Darkmind's Nefarious Plan
There was bound to be a suitable air duct somewhere he could ride.
An unpleasant world
Without a moment's thought he vaulted up into the air duct and slipped inside. twelve animals flowed into the apartment with an elephant at the lead who began issuing orders, "check everywhere for the slave.
His Prey
She knew he would never be able to fit into the air ducts. suddely, she cursed under her breath. the realization that he would never be able to get into the duct system bringing her deadly mistake to light. too late now.
Spirit Bound: Chapter 123
There was no hum or scent from air ducts or florescent lights, no murmur of distant conversations or the smell of the furs talking, and no buzz from computers or the acrid smell electronics put out.
The New World
There was also one that involved crawling into the arcology's air ducts, which was hazardous even on the best of days, but this one had them trying to outrace the daily ventilation purge. i'd never participated, but then again, quite a few of us hadn't.
Cost of Life - Chapter 3
Sam yelled as he fell out of the air duct and onto the bed, feet first. he twisted his ankle and screamed out in pain. colin flinched as he heard the yell, turning around to see sam landing on his bed.
Captain Clair Ignacio Vs The Mysterious Cosmic Jizz (part 5)
"she's likely in the air ducts." dez chimed in. "of course she is, that's where she always goes." clair said. he hoped she didn't puke in there like the last time.
Runaway Experiment: Part 6 - Planting Seed
General oscar gave him the job of studying the plant samples found in andrea's and tanzi's labs as well as in the air ducts.
Lost and Found
More than once they ran into places where the scents from outside were coming in through vents or being moved via air ducts. in a few cases they actually crawled through these, but most were too small and they were forced to find another path.
Primal Passions: Issue #2- Memories
All she heard was the beep of the heart monitor and the hiss of the air duct. she looked over at primal to see that his eyes were open. she quickly jumped up and rushed to his side.