It’s killing me, and I’ve already wasted way too much time with Google and other things trying to find it.

It’s a creepy short story, I read it in 4th or 5th grade. A girl has two cats/kittens. They get sick and die - I think first one, then the other. She tries really hard to save them. The ghost of one of the cats haunts her and makes her really sick. OR the second cat doesn’t die but gets stronger as she gets sicker? I can’t really remember. She has a fever and is near death when the ghosts of some of her other pets (whiiiich… were buried outside?) come and save her.

This is driving me crazy. It was a good story; I remember being really creeped out when I first read it, and re-reading it a few times to try and figure out what made it so effective.