The idea behind this map is that the players need to take the central blue lantern and light the braziers by following the path that links them (explained ahead of time or on the spot from a helpful spirit). While the braziers are being lit, spirits and skeletons or animated piles of bones would come up through the side entrances (which are barred off) or from the grates on the floor (which lead deeper into the crypt). The north exit would be sealed by a spectral wall until the braziers are lit.