It is one of New Zealand's rarest fungi. Fischer's Egg is known from only two locations. It acts as a ghost in the leaf litter. The fruiting body is egg-shaped and brownish. It spans two to four centimetres across. It looks like a small, leathery egg half-buried in the debris. Very little is known about its ecology. It is a fungus that keeps its secrets. The mystery is part of its identity. The fungus is named after the German mycologist Eduard Fischer. He specialised in the study of gasteroid fungi. The species was first described from specimens collected in New Zealand in the early 1900s. For decades, it was thought to be extremely rare. That remains true today. A century of rarity. A century of mystery. The timeline offers no relief. The status is unchanged. The two known locations are in native forests in the South Island. Both are protected. But the fungus remains vulnerable. A single landslip could wipe out the entire population. A single fire could do the same. A single introduced pest could finish the job. Fischer's Egg is a conservation priority. It is a species that lives on the edge of oblivion. The margin for error is zero. The risk is total. Very little is known about its life cycle. It may be mycorrhizal. It may form a partnership with the roots of native trees. It may be saprotrophic. It may feed on dead wood or leaf litter. Without more research, no one can say for sure. It is a fungus that refuses to be understood. The uncertainty is frustrating. The lack of data is critical. To find Fischer's Egg, a person would need to visit one of its two known locations. Even then, luck would be needed. It does not fruit every year. It does not fruit in predictable places. It is a ghost. It is a mystery. It is a reminder that the forest still holds secrets. These secrets have not yet been unlocked. The search is difficult. The reward is uncertain. The forest is deep. The leaf litter is thick. Somewhere, a small brown egg waits. It is half-buried. It is not fruiting this year. Maybe not next year either. It can wait. It has been waiting for a century. It can wait a little longer. The patience is absolute. The silence is complete.