In front is a is a small marsh, and it empties into a medium sized pond. Alzar can make out an island in the pond, and a bridge to it on the west side. In the swamp Alzar can make out these large leechoid type creatures.
There are 15 or 16 of them moving around. He grabs a skull from his belt and casts Skulltrap and throws it 40 feet into the swap and kills them all, cleaning them out. He also killed a black pudding in the swamp he hadn’t gotten to as well.