Diascheses

A class of finding spell geared toward determining the location of a physical object. A diaschesis works by testing a given volume of spacetime to discover if anything is disturbing it in a way similar to that expected of the object being sought. The spell employs a variant of what computer programmers now call "fuzzy logic"; if the exact object sought can't be found, the diaschesis will sort for the next closest match to the expected characteristics. (SYWTBAW)

See also: Eisodics.