Finding no traps, Jillian discovers that her fingers go right through an illusory veil covering a tunnel cut into the stone. The shaft would require all but the smallest members of the group to crawl were they inclined to follow it and see where it goes. Even the more diminutive among you will be forced to duck down. The shaft leads west starting from near the north end of the western wall of the room. After about 10' the tunnel curves north.