T5.1

A heavy, oily taste fills the air, the rotting corpse of a large rat sits in middle of the hall.

Searching the Floor
Perception DC 22: You observe a thin layer of sticky tar on the floor.

May burn the tar off, or make Acrobatics DC 20 to move across without being entangled in the tar, though at half speed.

If missed, target is entangled, and becomes susceptible to catching fire from any source of flame. If lit on fire, the tar burns intensely for 1 round; it deals 2d6 points of fire damage and is destroyed in the process.

Searching the Walls
Perception DC 25 +1/10': You see a small crevice in the wall here, it looks like something burrowed it, it's only large enough for a small creature to crouch in, or a medium creature to crawl through.

From K6
''You poke your head out from the small tunnel and look around the larger tunnel before you. To your left you hear some scuttling noises, to your right the air is cooler and sweeter in smell.''

From R5
''You leave the large room where the kobolds eat and enter a long tunnel. It becomes cooler as you go and a sweeter smell fills the air''

From R11
''You leave the larder and enter a long tunnel. It becomes slightly warmer as you go and you hear scuttling noises up ahead.''