As the party crawls closer to the black pool, the smell of kobolds becomes stronger though there are no visible signs of the creatures. But as you get to the lip of the water's surface you can see that there are nearly a dozen thick, slime-covered stalks that snake from the edges of the pool and are connected to partially submerged pods.
The pods bob gently, although something inside of each of them occasionally twitches and stirs, causing further rippling across the liquid surface of the pool.