Percy Washington Timeline and Summary

Percy arrives at St. Midas' school in Boston. He is reserved and uncommunicative about his home life.
He befriends John and then invites him home for the summer. On the train ride home, Percy reveals that his rather has a diamond as big as the Ritz Carlton hotel.
His first morning at the estate, John listens to Percy tell him the history of the Washington family over breakfast.
Percy goes on a tour of the estate with his father and John. He urges his father to show John the prison.
We don't hear from Percy again, but he is with his father when the family goes into the mountain right before it all blows up.