Sphynxa is a microverse, an environment less than a whole world. Sphynxa lies at the edge of everything, in the mists between universes.
The legendary sphynx is believed to be its only inhabitant, a pleasant enough creature, a mistress of space and time, but stern and unyielding. From Sphynxa, it is said, one can go anywhere, but first one must satisfy the supreme riddler...