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Egyptian secrets take center stage in this interactive mystery where boys and girls can solve codes and puzzles right along with the multicultural cast of characters. Cody, Quinn, Luke, and M.E. love playing around with codes. In fact, they love codes so much they have their own club, with a secret hideout and passwords that change every day. After learning about steganography, the study of concealed writing, the Code Busters discover that artists...
4) Rescue
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657 days ago Meg's British father left their home in France to fight the Nazi's, leaving some codes in a jar for her to decipher, and Meg and her French mother moved to the Perche, a region in France near Normandy known for its forests; now Meg watches the German soldiers in town, and sometimes carries messages for the French resistance--but suddenly things have gotten much more dangerous: there is a wounded British officer hiding in her grandmother's...
11) The viper's nest
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When Amy and Dan Cahill trace the footsteps of a formidable military leader from the Cahill bloodline, they uncover a devastating secret about the family that changes everything.
12) All is fair
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Mina receives a mysterious telegram at her boarding school in England. She has no idea she's about to be pulled into a secret mission that will take her all the way to Germany---and that could change the course of World War I.
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Twelve-year-olds Ambrose, Tom, and Frankie are transported to the boys' hometown of Freedom Falls, Ohio, in 1852 when Frankie blows her Romani family's magical trombone, and to return home they will have to use both Morse code and the ancient form of divination known as the I-Ching.
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When a historical mansion opens to visitors, siblings twelve-year-old Charlie and thirteen-year-old Anna and their parents are granted a free weekend stay after Charlie wins a puzzle contest. Other guests, twelve-year-old Emily and her parents are on a mission to keep the mansion as a historical site. The three children come together when Charlie uncovers a numeric code on the walls, Anna discovers a secret passage, and Emily wants to find out the...
15) Storm warning
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The shadow of the man in black has followed fourteen-year-old Amy Cahill and her younger brother Dan on their worldwide search for 39 Clues that lead to a great power. The man has tried to kill them and he is a Madrigal, as were their parents. And now the man is ready to step out of the darkness for their final confrontation.
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"Bertie Bradshaw never set out to become a spy. He never imagined traipsing around war-torn London, solving ciphers, practicing surveillance, and searching for a traitor to the Allied forces. He certainly never expected that a strong-willed American girl named Eleanor would play Watson to his Holmes (or Holmes to his Watson, depending on who you ask). Leaving behind a coded notebook, Bertie is determined to solve the mystery. With the help of Eleanor...
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Dr. One-Zero won't stop until the whole town--no, the whole world--embraces the "true happiness" found in his poisonous potion, Green Pop. And now that he has the Turtle of Light, he's virtually unstoppable. There's one weapon that can defeat him: another Turtle of Light. Unfortunately, they can only be found in another dimension! To open a portal to this new world, Hopper, Eni, and Josh's coding skills will be put to the test.
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It was only a few weeks ago that the Biedermann twins, Tess and Theo, along with their friend Jaime Cruz, followed the secrets of the Morningstarrs' cipher further than anyone had in its century-and-a-half history -- and destroyed their beloved home in the process. But the Old York Cipher still isn't solved. The demolition of 354 W. 73rd Street only revealed the next clue in the greatest mystery of the modern world, and if Tess, Theo, and Jaime want...