3 of our kitties before the great cat migration. Now we have one. how do 15 cats disappear overnight? If I had an extra $100 I would order a cat gps and see where they are. Chloe, one of the moms left and she came back last night. she is still nursing. the kittens have to be close by somewhere. but why don't they ever come back? weird, weird. if we did find them, they probably would just leave again, but it's so weird that they are all gone at once.