Contributor(s): Stead, Rebecca (Author) As her mother prepares to be a contestant on the 1970s television game show "The $20,000 Pyramid," a twelveyear-old New York City girl tries to make sense of a series of mysterious notes received from an anonymous source that seems to defy the laws of time and space. Publisher: Yearling Books Pub Date: 12/28/2010 Target Age Group: 08 to 12 ISBN: 9780375850868 Lexile Level: 750-IL: MG - BL: 4.5 Binding: Paperback-1.78 cms H x 19.30 cms L x 12.95 cms W (0.16 kgs) 199 pages BISAC Categories: Juvenile Fiction | Mysteries, Espionage, & Detective Stories |