The room at the end of the slope was another large room, with another two branching off, one to either side.  In one corner, a few smaller rocks were arranged around a larger one, forming a makeshift table, but beyond that there wasn't anything unusual here.  As she continued her exploration, the first thing Mareth noticed when she looked through the path on the right was a pair of kobolds, apparently asleep, with a large basilisk curled up in the corner.  A closer look showed four clear sleeping areas, likely meaning there were at least two other kobolds here somewhere.