The cat returns back to live but, as a demented and vicious version of itself.
The novel was adapted into a 1989 movie of the same name, so the Muschietti’s would need to put their own stamp on it.
When another tragedy strikes the family, the father will discover that resurrected people don’t fare much better.
When the family cat dies, rather than explain to his young daughter the concept of death, the father is instructed to bury the cat in a secret part of the cemetery.