Detect Poison

By means of this spell the druid is able to determine if some object, creature, or area contains poison or has been poisoned. 

In general, the area which can be perused by the dweomer of the spell is about 1 cubic yard of space. Therefore, the druid cannot determine if an entire pond is poisoned, but he or she could tell if a portion—or something within the portion—scanned during the round contained poison. 

There is also a 5% chance per level of experience of the caster that the type of poison used or contained in the area scanned will also be discovered by the spell, i.e., contact poison (insinuative), ingestive, or respirative (gas).

While more than one area can be scanned with a detect poison spell during the duration of the spell, it is almost fruitless to attempt to determine poison type for all of those areas; any single failure on the "5% chance per level" roll to detect poison type makes this spell useless for this purpose for the remainder of the duration of that particular casting. 

In addition to mistletoe, the druid needs a yew leaf as a material component for this spell. The latter item will turn brown if poison is present, so that several will possibly be needed to fully utilize the entire spell duration.