After the battle against the Kruthik, the group decides to open the last door they have not yet opened on this level. A message written on the moss of the door says ‘Stay out. Really’.Aurum opens the door to discover a large cave with a large underground lake.
Fungus-coated stairs lead down into a natural cavern. Much of the chamber is filled with a stagnant pool of brackish water. A path of land rises from the foul water at the pool’s center. On this little island, bones, spilled coins, and other small objects are visible among the carpet of fungus.
However, Bark senses that they are not alone in the cave.
Ripples stir the calm water, as if something moves beneath the surface.
Asha Greyjoy moves to the side of the water, and with indications from Back, she fires a power into the water. Suddenly, from the depths, a large amorphous blob of bluish ooze attacks.
As the group battle against the Blue Slime, it releases a cloud of noxious gas which weakens those affected by it. It also launches a slime attack, which burns Urszula and her bear.
After a long fight,which drops Bark unconscious, the group manages to destroy the slime.
On the island, they find some treasure, including a shield and a message cylinder. Within the cylinder are three sheets of vellum: a map of the area indicating the location of Shadowfell Keep, a message :
“Remember, don’t wet the nodule-unless Kalarel is not receptive to the offer. Then, wet it only from a distance , and then, turn and run. Water will bring the creature out of its dormancy and it will consume anything it can reach.
The third page also contains a message:“Greeting Kalarel, I have recently learned of your activity in the area and have an offer for you. During your time in this region, if you should capture any humanoids, we are eager to buy them. We have duergar allies in Thunderspire in need of slave stock. If you are interested, send an envoy back to me. My messenger will show the way.” It is signed: “Chief Krand of the Bloodreavers.”
The group patches themselves up and proceed to head for the stairs that lead down to the next level.
The stairs descend into a large, torch-lit chamber. Two human-sized creatures stand near the entrance. Big-pointed ears stick out from under their helmets, and sharp teeth glitter in their mouths. One of the guards yells out a challenge phrase: "Shadow seeks shadow!
The group tries to bluff their way in with a counter-phrase but gets it wrong. One of the guards yells ‘Intruders!’ and they attack. Several more of the same creature appear from other doorways to attack the group. 2 head for a cage at the back of the hall, containing a large spider. The battle is long, with the group essentially staying int he entrance to defend themselves. The spider finally gets released but Urzula manages to befriend it, so he is ignored by the spider. Others, however, are not so lucky. Back falls during the battle but the group emerges victorious.