disiparation and asiparation

two days ago on our birthday Ari went missing. we searched for him with our newfound powers but he was no where to be found. about the same time I noticed a little pure white kitten with a rune-like mark on its shoulders. I once started to learn Japanese and the mark on the kitten reminded me of the Japanese character for "Ari" - it looks like this> 有り<-the kitten has showed up again and again since my little brothers dissapearce. it follows us around everywhere mewing constantly. I have started to suspect what happened to my brother.