Mystery strikes at the problem-plagued Blackros Museum in Absalom and its curator, Nigel Aldain, needs help. When a famed Osirian tomb raider returns to Absalom and disappears in the museum’s basement, Aldain fears the worst. When strange sounds echo from below and several of the curator’s night watchmen go missing, he panics and begs the Varlokkur to investigate the mystery and save his museum from the darkness that infests it.
A couple of days after their expedition to the Fallen Fortress the agents of the Varlokkur are summoned to the Scholars Quill, a reputed tavern in the Wise Quarter of Absolom. The five heroes are met there by Alexis, who advises them that he wishes for them to embark on their first investigation. The diviner tells the agents of the plight of the Blakros Museum and that Nigel Aldain has approached him and asked the Varlokkur to venture beneath the museum to discover the fate of one of the daughters of the Blakros family and of the watchmen who went looking for her. Unfortunately Alexis has other pressing concerns, but he feels he can trust this assignment to the agents.
The five make their way across the Wise Quarter to the Blakros Museum, where they are met by a shaky Nigel Aldain and quickly shown to the entrance to the museum basement. Descending down into the darkness, it soon becomes apparent that all is not as it seems below the museum. Decrepit exhibit attack the heroes, animated by some fell magic. After an encouter with a taxidermied owlbear almost kills Bundin the group take a more tentative approach to the cellars. They soon encounter a twisted plant know as a Yellow Musk Creeper, but luckily this is quickly sliced up in a combined attack.
The agents continue through the museum basement, uncovering the Blakros archives which now play host to a collection of otherworldly bioluminescent mushrooms and fungus. While most of the fungus and mold doesn’t seem harmful several of the group fall prey to the heat draining properties a size of brown mold. Bundin and Julian return to the church of Torag to seek divine healing, while the others begin searching through the archive. Apprentice Doel takes the time to decrypt a hidden message scribbled in Osirian. During his search A’hymhu uncovers a trapdoor well concealed beneath the fungus growth, as well as a backpack containing Osirian trinkets. When the group reunites they haul open the trapdoor and cautiously venture down into the hidden chamber.
Once the agents descend the slippy mold covered stairs they enter into a disturbing chamber, mirroring the stomach of a warped leviathan. As they press on towards a disturbing green light behind a black curtain A’hymhus curiousity gets the better and he opens a box filled with spiders that swarm across him. Apprentice Doel moves to duck through the curtain and reveals Imrizade attached to the foreboding Gate to Beyond by flesh tendrils, guarded by a zombified watchman.
As combat ensues things begin to look bleak as A’hymhu falls beneath the spider horde and Bundin succumbs to wounds inflicted on his by the zombie. However, as it looks as if all hope may be lost Doel summons an eagle which destroys the cannister controlling Imrizade and she ceases her assault as she collapses. With the gate imploding on itself, the agents retrieve Imrizade and their injured allies and make for the museum basement to take stock.
With their assignment complete the agents return to Alexis and make him aware of their investigations. Alexis congratulates them and advises them that he’s arranged for them to use several rooms of the Scholars Quill as a base of operations. The following day all the investigators receive a letter of thanks from the rescued Imrizade Blakros.