Changes

This quest occurs in every single player game The Chamber of Diablo Bone is reached via a stairway leading up from level 6. Initially the stairway is inaccessible; blocked off by walls surrounding it. You must find the Mythical Book, located randomly somewhere on the level, and read it to remove the outer walls and Hellfiregain access to the stairs (or you can teleport over). In addition to opening up the stairs, the Mythical Book has a nifty legend:

:''Beyond the hall of heroes lies the chamber of bone. <br>:''Eternal death awaits any who would seek to steal the treasures secured within this room. <br>:''So speaks the lord of terror, and so it is written.''

This quest is very useful for the +Guardian spell, since it's a useful spell, the books are expensive and rare, and non-Sorcerer characters can't get enough magic to read the spell books past about level 5. (Note that more points in Guardian simply extends the duration of the dragon heads; more points in Firebolt is what increases the Guardian's damage.) Besides the Guardian spell, there are two chests in side rooms, each of which drop 3 magical items.

Use The large central room in the Chamber of Bone has the highest density of monsters anywhere in the entire game. There are at least 70 or 80 skeletons packed into the room, along with about a dozen Hidden. They are not powerful monsters, and have only a single doorway to deal exit through through, so most characters are able to treat this like a bonus quest. Stay right at the doorway during the battle, even if you take hits, since the skeletons will otherwise pour forth like sand from a broken hourglass. It's wise to clear out the rest of the small level before taking on the large bone room too, just so no Hidden or Chargers will wander up behind you while you're engaged with the massive mobs never-ending stream of skeletons. Firewall  Spells with splash or area effect are quite useful here. A single firewall can kill dozens of skeletons. Also, be very careful moving into the room; just standing in front of the doorway will not alert two rows of skeletons against each side wall, and an overly-rapid advance into the bone room can result in a surrounded hero. Finally, it's helpful in thinning their ranksto grab the gold stacks that pop out next to you while the battle is going. Initially there is no room for any item to drop inside the tomb, since it's solid monsters. Grabbing the gold as it piles up beside you is easy, and it frees the space for another shower of gold to fall, saving you on pick up time afterwards.