The Sovran were an ancient race that once occupied the City, long before any of the races that currently call it home. They disappeared twelve thousand years ago for unknown reason, leaving nothing but the ruins of a vast and advanced civilization.
Two weeks ago, a reconfiguration in the Stone Canton brought to the surface a large Sovran structure. It is a vast complex of dark stone, rising several stories over the buildings around it and covering an area of several city blocks. Initial investigations confirmed that the structure is indeed Sovran in origin, and has likely not been on the surface in thousands of years. The early investigators mapped out some of the most easily accessed halls and chambers, but the interior is a labyrinth, filled with twisting hallways and secret chambers, and it would take years to explore thoroughly. Now the Forecasters are already predicting the temple will disappear again soon, though they cannot yet say exactly when.
Worried that the opportunity to study the Sovran building will soon be lost, the Cartographer's Society has issued a challenge to all adventurers, archaeologists, and treasure-hunters in the City. Anyone who wishes to may enter the Sovran temple with the Society's blessing and support, and significant rewards will be given for any artifacts or discoveries recovered from within. Explorers are advised that the temple may be dangerous. The Sovran were a devious people, and the temple likely contains traps and hazards that still function to this day.