Finlay Macreeby is the son of Virgil McCreeby and friend of the twins. Due to the fact that he resents his father turning him into a hawk, he quickly goes against his father's ways and befriends the twins. He helps them find Faustina Sachertorte, and at one point John, Finlay, and Faustina all occupy the same body. Both of them seem to have developed an affection for Faustina.
When Finlay was abandoned by his father, Edwiges took him in and she helped him earn enough money to go to school with one of her gambling systems. For the most part, their relationship was a good one but Finlay ran away because Edwiges kept trying to be like a mother to him, which made him uneasy.