Common apocryphal knowledge holds that burying the tooth of a hydra will give rise to mighty warriors. It is less well known that burying the teeth of other creatures produces other effects.

Serpent teeth: Grows small but dedicated warriors ranging from 3 and 3/4 inches to marionette-sized, depending on the size of the snake. They hate gemstones and will attempt to destroy them on sight.

Cat teeth: A small poltergeist, never seen. The corpses of ghost birds and ghost mice will be left near your sleeping area for two to four weeks.

Adult human teeth: If the person to whom the teeth belonged is alive, a small stream of blood will begin flowing from the area in which the teeth were planted within a week. Analysis would show that this is not the blood of the teeth's owner; nonetheless, the owner of the teeth will find it difficult to concentrate, like they had two cups of bottom-shelf jug wine. This lasts as long as the blood flows, about a day per tooth sown.

If the owner of the teeth is dead, the odontic farmer must take pains to irrigate the planted teeth with brackish water every third night at midnight for two weeks. This will produce a brazenhead with a circumference of one inch per tooth planted. If multiple teeth are used they must all come from the same dead person. The brazenhead will answer a number of questions equal to the number of teeth planted. It knows everything in the owner's life as well as their current afterlife situation and is compelled to answer more or less truthfully, but it doesn't want to exist and probably won't want to be very helpful. The bigger the brazenhead, the louder it is.

Children's milkteeth: If irrigated with milk and carefully tended, a handful of children's deciduous teeth -- they don't have to be from the same child -- will compact into a fist-sized bulb which will then sprout into a small shrub that produces more milkteeth as fruit. This could probably be used for some kind of scam if you put your mind to it. If you stop tending the shrub, you may come to learn that the tooth-bulb is actually the larval form of horrible little creatures. After a few weeks without milk, the instar phase of the creature will emerge from the bulb. They look like five-inch-long maggots with weasel legs and they eat bone. If they eat enough bone they'll eventually create a cocoon, molt, and emerge as winged fey creatures possessed of a malign sentience.

Hog teeth: Grows into reverse mandrakes; delicious truffles that coo and groan happily if you pick and eat them.