Demons

Demons' Amulets: Demon lords and princes maintain their vital essences in small containers - their souls, so to speak, are thus at once protected and yet vulnerable if some enterprising character should gain the amulet. Demons with amulets are able to magic jar once per day. Demons' amulets cannot be detected as such by any magical means, and they do not otherwise appear unusual in any way. The device need not be with the most powerful princes, although the lesser demons typically need to carry theirs on or near their persons. Possession of an amulet gives the possessor power over the demon to whom it "belongs" for the space of, for example, one adventure, and never more than a day (24 hours). The amulet must then be returned to the demon - or it can be destroyed and thus condemn the prince to abyssment for a year (and he may return thereafter only if summoned). Use of an amulet is very, very dangerous. Possession of one will double chances of calling the attention of another demon, and any demon not controlled by the device will immediately attack the person possessing such an amulet. If the amulet leaves the hand of the one commanding the demon to whom it belongs, that demon attacks him in its most effective fashion immediately, attempting his utmost to slay and then to carry 011 that remains to his own domain, i.e. that character is lost and gone forever. On the positive side, however, if the wielder of the amulet carefully repays the demon for aid rendered, adds a considerable sum for having the temerity to dare to command the demon in the first place, and then carefully restores the amulet to the demon, the prince might not bear him a grudge forever ofterwards nor seek to hunt him out whenever possible.

Devils

It is possible to destroy the material form of a greater devil or duke of Hell, but such creatures can not actually be slain unless encountered and fought in Hell or those lower planes adjacent to it. Devils can never be subdued. The lesser ones will always fight until destroyed; the greater ones will negotiate if seriously threatened. Devils will serve if properly commanded, but it is risky business, far an improper command will break the law which binds them to service. (It also typically requires a contract for the soul of the creature commanding the internal power to obey.) It is possible for other than lawful evil persons to invoke or otherwise treat with devils (but the long spoon, aft spoken of, had better be used when supping with such monsters). Magic circles will keep devils off for a time if they are properly scribed (and ensymboled in the case of a greater and arch-devils). Devils are repelled by holy (good) artifacts or relics