Rick Riordan Quote
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.
The House of Hades (Heroes of Olympus Book 4) (ed. Penguin UK, 2013) - ISBN: 9780141339214