As Kalath cautiously continues down the sewer tunnel, he begins to notice clusters of white globes sticking to the ceiling and walls in ever increasing numbers. They appear soft shelled and are about the size of a Grapefruit. They also appear slime covered and there is perhaps something moving inside some of them.
Kalath can now see something just ahead moving through the tunnel towards him. There is perhaps a hint of tentacles and it appears very large and round.
As Kalath moves forward, he finally can make out what it is. It is a giant snail, fully ten feet high, with two large antanae that wave like tentacles.
The snail seems to sense Kalath and slowly moves forward.