Who is Gregory Snodgrass from The Floating Island and what is their importance?

Gregory Snodgrass is the deceased son of Captain Oliver Snodgrass and his wife, Gertrude. He died at the crossroads when he was fourteen, killed by bandits. Gregory is a Revenant (spirit), who wanders the earth, kept active by unfinished business. He is aware of the evil that haunts the crossroads, and he tries to save both his mother and the inn from the blackness. Gregory assists Ven by saving him from Whiting's dogs, helping him see the truth, and by showing him how to heal the crossroads. Gregory knows that he cannot rest until his mother and the inn are safe. Once Ven and his friends put the Rover causing the problems at rest, Gregory is able to finally rest in peace.