A collection of hidden underground tunnels running under The Grand City of Mor'Koc, starting apparently from the Troll Bridge Association (TBA) - Mor'Koc Branch building. These tunnels were discovered by Astra Yaevis and Set Amenhasensahib, and was found to be filled by Morian dire spiders.
They later returned with Saskia Byrne and Unknown to assist, finding that the largest spider was afflicted with the Vampire virus, which helped lead Saskia and Astra to the answer to their mission and thus to Rosechild. They also managed to rescue one of the missing people, but sadly Set was killed during the rescue.