D:49 is the second-to-last level of the Caverns of Chaos. It can only be accessed once the PC acquired and correctly used all of the Chaos Orbs in the elemental anomalies on D:48. It is a unique level in that it features no monsters, and due to its slippery floor, cannot be traversed through conventional means. Teleportation is suppressed on D:49.
Normally, the only ways to move in this area are to kick a wall or direct a sufficiently heavy projectile in the direction opposite that which the PC wishes to travel, which will cause them to move in the desired direction according to the law of conservation of momentum. The exact relations governing which items can allow travel is not fully documented; generally items less than 4s will not propel the PC, excepting arrows and quarrels fired from a launcher. Items that return when thrown are particularly useful on this level for obvious reasons. Slings of the long shot are the most effective item for traveling quickly, propelling the PC by 9 spaces at a time.
The entire level is diggable and the way to the down staircase may be significantly shortened by digging in the north-western direction.
Monks may also travel through this level through their wall-kicking class ability. This can be accomplished by kicking a hole diagonally, then kicking in the opposite direction to push the PC into the open hole.
The artifact boots Moloch's Thorns added in v. 1.2.0 allow the PC who wears them to cross the level in a normal way.
PCs will suffer minor cold damage while on this level applied each turn. However, this can be easily negated by the appropriate resistance. More seriously, drakelings or PCs suffering from the cold blood corruption will experience a massive decrease in their speed traversing this level that will take some time to recover if they do not have a means to reheat themselves. This can make the extended battles in D:50 exceptionally dangerous. It is recommended that these characters dig through the walls to reach the stairs, located in the centre of the level, as quickly as possible to minimize speed losses.
PCs with a potion of uselessness can throw this item to receive a free artifact from a deity impressed by their ingenuity. This boon can only be received once. Also note that throwing the potion will only be acknowledged if the PC actually moves as a result.
Monsters will never spawn on this level and will not follow the PC from the levels above and below. It may therefore be used as a safe (although highly corrupting) location to rest and regenerate in case continuous fighting on D:50 is hard for the PC to sustain. It also means that companions cannot be brought down from D:48. A player wishing to have companions on D:50 must generate them on D:50.
There are a number of bugs associated with this level in v. 1.1.1; PCs who become trapped in webs, for example, will be unable to break them through any means and will invariably starve to death. Fortunately, none of these are likely to affect regular gameplay, and most of these are fixed in 1.2.0.
None; no monsters may ever spawn here and creatures cannot be summoned through any means as of 1.2.0.