You pass through several storerooms containing nothing but cobwebs and moldering crates. The faded quality of your lights adds a rather bleak cast to the already dismal environment.
Soon the path twists to the west and then down a short flight of stairs. At the bottom, you find yourselves at a crossroads, so to speak. There are three passages available: one to the north, one to the south, and another continuing west. You can't make out any light besides that of your sunrods, but it appears that there is something written on the stones of the north and east paths, in each case about 30 feet away from you.
[sblock=Arcana or Religion 15]It looks like some sort of rune, but you would have to get closer to be sure, or to have a chance of identifying its purpose.[/sblock]
The southern path, on the other hand, immediately opens up into a larger chamber, with a second chamber visible through that.