Perfume, cutting through the heavy air of the underground warren.
Thick cables led through the walls to elsewhere in the underground warren.
Four of the containment cells in the underground warren at Threshold were full.
The next access port led them down, deeper into the city's underground warren of service tunnels.
Once at the Hall, largely deserted so early in the morning, he made his way into the underground warren beneath the public spaces.
It was probably nothing more than a large rabbit-hole they found, leading into some underground warren.
It was another nullfield, protecting the entrance to an underground warren.
On five occasions, he has squeezed himself through the narrow entrance tunnel into the underground warren.
Up until now, things had been altogether too intense in the Legacy's underground warren of communications panels.
The guards on duty and the other folk who shared the underground warren observed the two of them closely, but said nothing.