ciphers

Logan tells Quinn that he likes breaking codes so she gives him a coded message. In truth, Logan isn't a code breaker and now he has to find a way to break the code or admit the truth.

"Chris and Carrie have been betrayed. Maddison has discovered the dark secret in her father's past. A cold case is suddenly hot and has changed from 'missing' to 'murder.' As a crime wave hists Archer's Grove and authorities struggle to catch the culprits, Chris, Carrie, and Maddison turn to the Kinsolvers' Aunt Elsie for answers. Can the notebooks she left behind illuminate this tangled web of lies, betrayals, and broken promises? Will the truth finally be uncovered?"--Proved by publisher.

Twelve-year-old Addison Cook and his friends are on the hunt for a long-lost treasure. They'll need to outwit a band of thieves, survive booby traps, crocodiles, and a Russian assassin--to name a few of the obstacles standing in their way--in order to secure the three keys needed to unlock the ancient treasure.

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.

Akiko, Mae, and Josie, also called the Infinity Trinity, spring into action after learning that a spy is betraying secrets to the Japanese military--and that Akiko's mother may be involved.

In 1666, after four months away, friends Christopher Rowe, Tom, and Sally return to London triumphantly but, guided by coded riddles, face a conspiracy that threatens Christopher, as well as the King himself.

657 days ago Meg's British father left their home in France to fight the Nazis, 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 barn, a family of German refugees who are trying to get to Spain, and the Nazis have arrived on the doorstop searching for the fugitives.

Told in multiple voices, fifteen-year-old Jamaican Louisa Adair uncovers an Enigma machine in the small Scottish village where she cares for an elderly German woman, and helps solve a puzzle that could turn the tide of World War II.

"Communicate in a language only you and your friends can understand! Expert language creator David J. Peterson (inventor of languages for Game of Thrones, the Marvel Universe, and more) guides you as you create your own secret languages, codes, ciphers, and hidden messages. From simple cyphers to entirely new alphabets, master the skills of secret communication, whether it's written, drawn, or spoken"--Provided by publisher.

"Mr. Summerling, Marly's neighbor, talked about being a treasure hunter, and news of his death has brought Marly into a treasure hunt of her own. In his will, Mr. Summerling left a treasure for Marly and two classmates, Isla and Sai. They barely know each other, but they have to work together with a series of riddles, puzzles, and clues to find the treasure"--OCLC.