Stephen King publishes Desperation
Desperation is a horror novel by Stephen King.
It was published in 1996 at the same time as its "mirror" novel, The Regulators. It was made into a TV movie starring Ron Perlman, Tom Skeritt, and Steven Weber in 2006.
The two novels represent parallel universes relative to one another, and most of the characters present in one novel's world also exist in the other novel's reality, albeit in different circumstances.