Parallel World



In the season 6 finale It's A Bad, Bad, Bad, Bad World it is revealed that there is a parallel world where evil prevails over everything to the exact extent that good does in our standard world. It exists to maintain the cosmic balance.

In this world, the Charmed Ones are powerful evil witches, and the terrors of San Francisco. Leo and Gideon are Darklighters, while Paige, Wyatt and Chris are Half-Darklighters. Chris came from the future to save Wyatt from turning good. Meanwhile, the Underworld is a garden-like paradise and a sanctuary for good. Demons are peaceful beings who try to rid the world of evil (for instance, Barbas is the Demon of Hope).

The Charmed Ones' neighborhood on Prescott Street is a slum, P3 is a strip club (where Inspector Sheridan moonlights as a pole dancer) and the San Francisco Police Department is made up mostly of rogue cops.

The Book of Shadows is evil here, and has presumably become much like the Grimoire, making it likely that the Grimoire has become much like the good world's Book of Shadows.

The Charmed Ones of both worlds once met each other except for good and evil Piper. When in combat, the two Phoebes and Paiges fought each other to a draw; they were not only evenly matched, but were thinking the same thing at the same time.

Dangerous consequences can result when the two worlds aren't in balance with each other. When the two Phoebes and Paiges ended up in the parallel world at the same time and helped stop Gideon's first attempt on Wyatt's life, it resulted in the normal world becoming entirely too good and the parallel world becoming entirely too evil. In the altered normal world, the sun never set, and even mild swearing is a capital offense, while in the evil world it was always night and even little good deeds got your limbs cut off. The balance was only restored when Leo killed Gideon in front of the mirror linking the two worlds, with only the good Leo delivering the death blow--a "great evil" that contaminated the normal world.