104 Results
Book jacket

Book

2004
For twelve-year-old twins Andrew and Evie, moving is a way of life. Their dad is in the military, and they've never stayed in one place for long. But relocating has gotten harder since their mother disappeared on the twi...
Book jacket

Large Print

2018
Bletchley Park, 1942: As World War II rages on, Honey Deschamps sits at her type-x machine, tediously transcribing decrypted signals from the German Army, doing her part to assist the British war effort. Halfway across t...
Book jacket

Book

2019
When twelve-year-old painter Esther gets stuck at math camp rather than art camp, she is determined to prove herself but someone leaves cryptic messages intended to drive her away.
Book jacket

Book

2010
"Amy and Dan hit the high seas as they follow the trail of some infamous ancestors to track down a long lost treasure. However, the real prize isn't hidden in a chest. It's the discovery of the Madrigals' most dangerous...
Book jacket

Book

2013
A respected and renowned shine of the Roman Empire vanished without a clue, and archaeologists have no idea where it is. Alexander the Great's tomb is also missing, but when word of its secret location comes out, along w...
Book jacket

Book

2011
During World War II, eleven-year-old Felicity is sent from London to Bottlebay, Maine, to live with her grandmother, aunt, uncle, and a reclusive boy who helps her decode mysterious letters that contain the truth about h...
Book jacket

Book

2006
"A two-hundred-year-old code devised by Thomas Jefferson becomes the key to a present-day conspiracy at the highest levels of Washington and the power elite of Palm Beach"--Provided by the publisher.
Book jacket

Audio Book on CD

2017
The first book in an epic alternate-history series about three kids who try to solve the greatest mystery of the modern world: a puzzle and treasure hunt laid into the very streets and buildings of New York City.
Book jacket

Book

2008
When Bertie the badger visits his grandfather at a retirement home for magicians, he learns that his grandfather's rabbit, Enigma, has disappeared along with everyone's magical things, and the reader is invited to help b...
Book jacket

Book

2010
Zoe's sixth-grade year at a Brooklyn school for gifted students is marked by changing relationships with her fellow students and teachers, recognition of her talent for cryptography, and a greater awareness of her passio...
Book jacket

Book

2008
Philadelphia detectives Kevin Byrne and Jessica Balzano match wits with a deranged killer who is using the streets of the city as his own personal killing ground.
Book jacket

Book

2007
"A debut, rip-roaring archeological thriller about the search for the lost tomb of Alexander the Great "--Provided by the publisher.
Book jacket

Book

2015
Jax and Ethan must decode an ancient Greek cipher to uncover the location of two magical urns before the urns are used to remove all faith and love from the world.
Book jacket

Book

2009
A clue found in Book 3 sends Amy and Dan to find out what's behind the fierce rivalry between the Tomas and Ekaterina branches of the Cahill family. Was a clue stolen from the Tomas branch? Where is it now? And most impo...
Book jacket

Book

2015
The magic tree house has taken Jack and Annie back in time to England in 1944. England is fighting for its life in World War II. Before long, Jack and Annie find themselves parachuting into Normandy, France, behind enemy...
Book jacket

Book

2011
Sigma Force stalwarts Painter Crowe and Commander Grayson Pierce must investigate a gruesome massacre in the Rocky Mountains and root out a secret cabal that has been manipulating momentous events since the time of the o...