Hobo Kostinen was a child living in Ogmore-by-Sea. He had alopecia.
When Lucy Wilson joined his school after moving from London, Hobo made friends with her very quickly, with both of them being outsiders. The two of them travelled to London to an event celebrating the life of Alistair Gordon Lethbridge-Stewart. The event was a trap by the Great Intelligence. Hobo was able to help Lucy defeat the entity alongside Dame Anne Bishop. (PROSE: Avatars of the Intelligence)
James Lethbridge-Stewart had memories of meeting Lucy and Hobo in Bledoe when he and Alistair were children. He recalled that Hobo possessed more knowledge about them than was possible. (PROSE: Night of the Intelligence)