The cell was at the end of another underground corridor.
They walked from the elevator down an underground corridor leading through the whole complex to the computer rooms.
To get here, Teddy had come through a series of underground corridors that connected all the buildings in the compound.
I followed him, and a minute later we were racing down the underground corridor.
The court and the prison are connected by underground corridor.
It was she who had conducted Porter to this underground corridor.
Every house in Paris was to be connected by an underground corridor to the sewers.
Hardly anyone in the underground corridors at this time of night.
A few yards in, they made their way over a rock and into an underground corridor.
Though it had long underground corridors like the Kalandan station, everything else was different.