Doors in Castle Akan

Im not sure if this is by design or because they're mithril and Im a drow or what... but I died in a dungeon cell and I ran back to get my corpse as a ghost, and cant pass through the door north or south into cells, but I can pass east out of the dungeon. By design? <17%hp 24%m 71%mv 13040tnl 3 AM> The Dungeon (Exits: (north) (east) (south) west) <17%hp 24%m 71%mv 13040tnl 3 AM> n Alas, you cannot go that way. <17%hp 24%m 71%mv 13040tnl 4 AM> s Alas, you cannot go that way. <17%hp 24%m 71%mv 13040tnl 4 AM> e A Descending Tunnel (Exits: east (west))