When Sirk returned to collect the show donations that were being guarded by the goblins, he was approached by members of the Orcus Cult who noticed the hand around his neck. He told them he was interested in joining and they offered him the position of Pugalist champion of Orcus. He arranged to meet them at the Beached Leviathan later tonight to talk more. He then tracked us down and joined us outside the abandoned house we tracked the disguised skeleton to. The skeleton entered the basement.
The house was only a couple of blocks from where Ines exited the sewer earlier so she went with some backup to find a sewer entrance to the basement. Which they did and the basement was empty. She signaled for us to join her and we continued to track the skeleton through the sewer to Yarno's layer but he was not home; just some cultists of Orcus that we ended up sending to him.