The white-haired muckraker happily takes the coin, perhaps with a hint of surprise. “Thank ya kindly, Sir. There be three or four gnolls living in one of the nearby chambers. It’s a big room with sewage coming in from three directions, joining together, then out to sea. They’ve been there about two months. There are four paths in: the one from the south is probably still mostly impassable unless you want to crawl through sewage; the one from the west we’ve stopped using since people go missing in that corridor; coming in from the north is probably easiest, the grate about a block that way - pretty straight shot from there, first chamber it hits; last from the east, the one headed out to sea, is accessible from within the city behind the bakery in Horrth Plaza, you follow along the water until it meets up with a different canal, head uphill against the current, pass straight through the first chamber, they’ll be in the second.”