The blueprints mark suspected traps, but it's a few months old. We still have to be very careful. The extra senses of McDowell and Winder quickly become lifesavers.
We come into a section that looks clear, but Corporal Winder announces that the air smells funny. McDowell agrees. We take a reading, and find that lethal gas fills the shaft in front of us for fifteen feet. It's kept from drifting anywhere by airflow on either side. We can’t fly through it, as it’ll seep into our exposed skin and cause a gruesome death in minutes.
Sergeant Miller and Lieutenant McDowell put their frequency intelligence together, and come up with a solution. Using pieces of metal from the duct, they divert the upper airflow to send pulses of air through the cloud of gas. As long as one of us is encased in the
