Knoslira's Crypt

This spell causes any inhabited structure to become sealed as a crypt. In effect, all exits are wizard locked. Then the interior begins to darken over a period of five rounds. No light, even magical, can function in the darkness, nor can infravision. When the structure is dark, a horrible musty smell of death permeates the area. If the Ravenloft setting rules are not used, a saving throw vs. paralysis can be used to see if the effects of a fear spell are avoided. Otherwise, the conditions prompt fear and horror checks (the DM may optionally call for madness checks as detailed in the spell, descent into madness).

Notes: Very rare; usually found in the hands of necromancers or undead spellcasters. It can be successfully researched only on the Demi-plane of Dread.