I need a little hint again. I descended to level two (or three) from starting floor and the wall moved behind my back. I explored great swatches of lower levels, saw and solved a Knight's room on ice level, saw a magma lake, saw, but not solved, that X-room with a hidden door (just around that area with a treasure under first level moving wall, forbidden area and pitfalls ), but now I don't have rations (last food that I ate was looted from an enemy's corpse) and overall want to return and finish first level. Is there a way to return at all?
EDIT: I know about illusionary wall (24,54,3), but looks like it leads nowhere.