In Peril at End House, Sir Nicholas Buckley is the grandfather of Gerald Buckley and Nick Buckley. Nick lived at End House with him.
He was said to have sold his soul to the devil. He was known as “Old Nick”, while his granddaughter was known as “Young Nick”. He was a gambler, and lost most of his money. When he died, he left hardly anything besides the house and land.
There is a portrait of Old Nick hanging in the drawing room at End House. He is depicted as having a “dark saturnine face”.