feral kittens

I was in the family house where I grew up and I was bothered by a sound that I went to investigate. I went into the garage and then opened a small knee-high door that lead to the foundations of the house. There, I could see feral kittens, perhaps thirty or so, running around and fighting with each other. I knew that some of them were kittens that I had reared and cared for, but now they were mixed up with so many imposter cats that I could not tell which was which. I knew I had to clear the house of the cats as they were creating havoc.