OOC: I will give Bilfur first attack since he is perfectly positioned: 1d20=19, hit for 3hp killing the spider.
Bilfur smashes the spider with his torch and it stops moving!
It takes a few moments for the smoke to clear. The party finds an additional 6 spiders dead in the web. (The spider that attacked Bilfur was the 7th, and the only survivor.)
The tunnel that was blocked with webs continues to the south. Due to the elevation change, this tunnel passes under the tunnel connecting areas 7 and 10 and eventually connects up with areas 38 and 39. Before we get to that...
There is a small side-tunnel that was hidden by the webs. The spiders were guarding 2,000 silver pieces and 4 gems worth 30gp, 100gp, 100gp, 1,000gp!
(Nice score! Map update coming shortly, showing the hidden spider nook.)