Who is Harmon Fitch from The Warrior Heir and what is their importance?

Harmon Fitch is the eldest of five children. He is described as perpetually late, and he likes to make a statement with his style of clothing. Harmon believes that weird is good - strange is bad. Called Fitch by his friends, Harmon forms the third of the three musketeer-like friends that include himself, Jack and Will. He is loyal, dedicated, and selfless. Fitch joins the Chaucerian society with Will, and he is a member of the soccer team. When fate conspires to have them all in England together over the summer, he is kidnapped alongside Will in an effort to exert pressure on Jack and his status at the Game.