Ickulnerk of the Black Cloud Merchants said that he and some coworkers secretly went into the Abyssal Splinter, and almost died. He escaped, but his coworkers were still trapped there. He asked you to go save them. You saved a Shugo passed out inside the Storm Cave. When you returned, Ickulnerk thanked you, though he said that more of his coworkers are still trapped, and asked you to save them as well if you could.