Titus heals Malikar with three uses of the wand. No traps remain around the boulder. Continuing north you come to a four-way intersection in the tunnel. The eastern branch leads back to the chamber with the pit trap. The western branch leads to another chamber.
You continue north to a three way intersection. A western branch leads to a cave with a horrible stench. The ceiling is low and the walls are slick with moisture. It holds a grisly, bloody mess: some half-devoured humanoid creature, greenish white from bloating and decay.
Going back to the intersection and taking the eastern route, you begin to enter another chamber with damp walls and a loose, gravely floor. Unfortunately, Verakka fails to notice a rockfall trap. He is hit by a number of rocks (6 damage). Fallon, who is climbing along the ceiling, is likewise affected and falls to the ground (10 damage). It is easy to see that the room remains dangerous. Titus heals the two scouts with another three uses of the wand.
Once again Krug discovers a secret boulder door near the intersection. Opening it up he leads the party into the umber hulk's den. The cavern is large and full of loose rock. Some of the stones have been arranged to make a sort of bed for a very large creature. Others appear to have been shaped, but their purpose remains a mystery (some strange art?).
Searching the room, Krug finds treasure stashed behind a rock in the northeast corner: 230 gp, 492 sp, three gold and silver necklaces, a silver picture frame, a ring with a small black pearl, and a jeweled gold cup.
Returning to the first four way intersection, Verakka and Fallon check out the chamber to the west. The ceiling appears slightly domed, and every surface is wet with the greasy residue of mineral-choked water. Cracks in the walls reveal the moisture slowly seeping in, mostly along the north wall.
Once again the party is in for a surprise as a pseudopod lashes out from the floor at Verakka. He dodges in time and spots a jelly-like substance in the room.
Actions, please! I hope you don't mind the fast-forwarding there. You are welcome to backtrack later.