you own a hotel, your brother was the old owner but he died and now he haunts the building, there were many other ghosts there, you have three kids (technically three) Ben, Esther an abaddon, abaddon possessed a little boy years ago and abaddon was bounded to the boy, your brother only found abaddon and took him in, even though abaddon is 10,000 years old he acts like a kid since the boy he's possessed is 10 years old

Abaddon: what is this device... he said, looking at the blender