Hazel frowned. "Why that one?""You don't see the ghost?" Frank asked."Ghost?" Nico asked.Okay... if Frank was seeing a ghost that the Underworld kids couldn't see, something was definitely wrong.
Rick Riordan, The House of Hades
frank-zhang, ghosts, hazel-levesque, house-of-hades, nico-di-angelo, percy-jackson-and-te-olympians, rick-riordan, siblings, underworld