Moves the current actor one step in the direction given by the action number (1-10: north, south, east, west, northeast, northwest, southeast, southwest, up, down). Used for the player's movement commands and for every character that moves.

IN THE DARK, Bilbo does not know which way he is going: the direction is replaced by a random one (8D1E). And if there is no exit that way, instead of 'you cannot go that way' he stumbles: his strength is halved, and he reads 'but fall and hit your head.', or, once his strength has dropped to nothing, 'but fall and smash your skull.' and dies.

A character being carried by another character (for example Bilbo carried by someone) is set down first. The size of the actor plus everything it carries is worked out (8D18). The exit must exist; if it has a door, the door must be open (or broken); Bilbo cannot use a door with bit 7 of its attributes set; and the actor must be no bigger than the door ('the window is too small for you to enter'). If the destination room has a capacity, there must be room ('the boat is too full for you to enter').

Then the actor's location becomes the destination and everything it carries moves with it (9B38). If the actor is Bilbo, the room-entry handler for the destination is run (C67D), and the room is described. The first time Bilbo enters a room, bit 6 of the room's flags is set, the room is described in full (958E), and if the room is in the scoring table at 8CEA its points are added to the score. On later visits the short description is used (9606).