Of course they are upset, doomed to afterlife in the Hell and longing for companions - and you should be the one to accompany them on their way. Ghosts no longer have physical bodies, they are but barely visible floating silhouettes of [[Magical Air|ectoplasm]], [[Ethereal|passing through walls]] with eeire eerie soundlessness. Ghosts naturally cast a dull white light around them, not normally noticed unless you lack a light source.

When one of your [[character]]s diedies, he does not disappear forever. You may meet him again in a ghost form, disturbed and angry with the former player (you). In effect, the level you die on is saved and can be reloaded into another later game, such levels being known as bone files.

Each time you enter any level the first time in the given playthrough and you have died here in any previous game, there is a small chance that instead on generating a new level, a bone file will be used. That way you can recover [[items]] you had with older on your old adventurer, but all other features on that level will be saved as well - the [[Monsters|monster]] that had killed you, all physical alternations to the dungeon made by you etc.