The five of you turn around and head back up the steep stairs. A few minutes later and you are through the portal, small chamber, and back to the main corridor. Jango once again opens his lantern wide and splays a long beam of light up ahead.
You all walk for upwards of ten minutes down the long corridor. As you walk you find no other side passages, and finally you reach a wooden door that has been left ajar. You walk through the door and enter another small room, wherein there is another small table, a chest, and again a stone portal that is open that has many arcane runes and dragonmark designs around the stone frame.
Inspecting the room, you find the table has a number of papers on it. These include travel papers and itineraries for several sailors and other people (whose paths or destinations include Seawell), several maps of various tunnels (of which you suspect this room is one of them), and a bit of food and some fresh water in a large jub. There are several other picks and pieces of stoneworking equipment lying around, including a broken one or two.
Looking into the tunnel, you see that it heads forward for perhaps a dozen feet or so, then splits off into two passages... both of which narrow and lower until they are perhaps only three feet wide and only four feet high. The left hand passage slopes upward, while the right hand passage slopes downward. Again, you hear nothing from within-- no air moving, no sounds of people or creatures. There is no indication of any light sources from within the tunnels ether... it's all in complete darkness.
Upon making a quick check of the room and tunnel opening, Taviss discovers that there has been a little water spilled on the table, as well as several drops running down the outside of the jug. Someone looks to have taken some water very recently.