Parallel reality

The Parallel reality is a different reality where Prue Halliwell didn't die in 2386. In this reality Prue is married to Jason Tyson and lives in the Halliwell Manor with Piper, Phoebe, Paige and Typhuss. In this reality, Samantha Carter is a Colonel rather then a Brigadier General.

History
In 2391, Typhuss is somehow transported to this reality, he finds peace and love as his sister Prue is alive in this reality and dead in his reality.