Invisible
Definition
Invisible players, mobs or items can't be seen unless you're affected with detect invis (some equipment can affect you with this permanently, like the shades), in which case they appear as normal, just with an (Invis) tag in front. When you look at a room or your inventory, you won't see them and they will only be mentioned as 'someone' or 'something', e.g. A guard gets something, or Someone wounds you! Note that something that is hidden or someone that is wizinvis will produce similar messages. You can't initiate a fight with someone you can't see, or directly pick up what you can't see (you can pick it up using 'get all', but you still won't know what it is). A fight will remove this affect (as well as hidden and sneak) on both parties, or the vis command will remove them for the player alone.