Mr. Greystone

SPOLERS AHEAD!

Mr. Greystone was Chess's, Emma's, and Finn's deceased father. He was the husband of Kate Greystone. Chess was 8 years old when Mr Greystone died, and is the only one who can remember him. He worked to help people in the Alternate World, that is how he died. Because of this his wife, Kate Greystone had to move to the world. He is mentioned a lot in the books, but not quite remembered. It is said that Chess has a resemblance to Mr Greystone.