Myst (CIC: UTX-3702-138-RM) is a 'verse based on a series of computer games.
The gist of the Myst games is that there is a type of book that can be programmed to link you to worlds known as Ages (the literal translation of the D'ni word sehvtee). The player explores some of these worlds through the games Myst, Riven, Exile, Revelation, Uru, and End of Ages, known collectively as MREDURE. There are three spin-off novels, and a fourth novel and a movie (based on one of the novels) in the works.
In the PPCEdit
Agent Behnashiren is a former canon character from this series recruited to the PPC after his death.