Fairy Stools

Fairy stools are a species of mushroom native to Tepest. They exhibit explosive growth and reproduction when exposed to certain types of magical energy. In particular, they react to one or more of the following: creatures that shift shape, creatures with spell-like abilities, sorcerers, and spells from the conjuration, divination, enchantment and transmutation schools. Fairy stools are used by the Tepestani Inquisition in the attempt to identify the fey, their willing allies, and those who have been ensorcelled by their. It is probable that fairy stools are also similarly applied by the Syndicate of Enlightened Citizens.

References

Ravenloft Gazetteer Volume V, p50.