Subterranean tunnels of the Labenda Swamp

The Subterranean Tunnels of The Labenda Swamp was a network of underwater passage with occasionally a chamber with air that was used by merrows in the Labenda Swamp.

Safe House Entrance
Inside of the gentleman’s safe house was hole leading to the tunnels. The hole had chunks of rock and dirt as well as a very interwoven network of roots coming down from the tree, so it was fairly easy to climb down. There was a little bit of cold swamp water running down the tunnel.

First chamber
This chamber was kidney shaped it had a ten-foot high ceiling and a natural gravel and sand floor. There were a few outcropping walls and in the center was a small pool. The pool had brackish and thick water with on the bottom four discarded humanoid skeletons. On the other side of the kidney there was a ten square feet side pool that hid a tunnel that connected the first and the second chamber. Beside the pool there were a couple thing laying on the ground:
 * A bunch of empty partially destroyed crates,
 * Torn apart crocodile corpses,
 * 250 gold worth of jewelry,
 * 185 gold, 210 silver pieces, and 65 copper was
 * Four sets of manacles laying,
 * Two vials with thick oily purple substance,
 * A number of broken vials.
 * A well-crafted magical marble bowl of gold inlay with a curious design. The edges of the bowl shift into equally separated five dragon heads, and each dragon had eyes of tiny gemstones. One set rubies, one set emeralds, one set sapphires, and one set diamond. It was used as a communion device. When granted with enough blood and given the proper ritual, it was used to acquire auguries, divination, and communication across the Divine Gate with the Scaled Tyrant.

The Tunnel
The entrance of the tunnel was 5 by 10 feet and was used to travel between the chambers. The tunnel was 15 feet high with a layer of sediment on the bottom. The tunnel curves below and evens out and goes further for about 30-40 feet before it opens up into a 20-foot pool in the second chamber.