"Could the Mark Twain books hidden through Book Scavenger contain clues about the string of recent arson fires plaguing the city? And will Emily and James uncover the mystery before the arsonist comes after them?"--

Scholars convene at Corfe Castle to crack the code of Roger Bacon's Book of Secrets. When murder and mayhem ensue, Sir Hugh Corbett must thread through a maze of mystery while trying to unlock Bacon's great secrets.

"Forty years ago, Steven Smith found a copy of a famous children's book by disgraced author Edith Twyford, its margins full of strange markings and annotations. Severely dyslexic and wanting to know more, he took it to his remedial English teacher Miss Iles, not realising the chain of events that he was setting in motion. Miss Iles became convinced that the book was the key to solving a puzzle, and that a message in secret code ran through all Twyford's...

1940. As England prepares to fight the Nazis, three very different women answer the call to Bletchley Park, where the best minds in Britain train to break German military codes. Osla puts her fluent German to use as a translator of decoded enemy secrets. Mab works the legendary codebreaking machines and looks for a socially advantageous husband. Beth's shyness conceals a brilliant facility with puzzles, and she becomes one of the Park's few female...

To crack a secret code, Mac follows the clues to France and Japan where he must use his gaming skills and defeat his enemy, the KGB Man.

On an island nation in the Indian Ocean, the explorers venture through a vast underwater world and take part in a friendly robotics competition. But the tides of good fortune change quickly. Suddenly, Team Cousteau jumps into action to rescue a faculty member from the brink of death. Meanwhile, the team follows the Cruz's mother's clues to a magnificent tomb and center of spirituality precariously perched on the side of a cliff. There, Cruz is confronted...

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...

"William Wenton is a code-breaking genius, but when his secret talent is suddenly revealed, he has to face the danger that has been lurking around him for years in the third book in the William Wenton series"--

"Amid assignments that take the Explorer Academy recruits from the iceberg-filled waters of Antarctica to the bone-dry deserts of Argentina, Cruz Coronado is scrambling to complete the last piece of the cipher. With Nebula agents and the elusive explorer spy still out there, his opportunity to recover his mother's world-changing formula is slipping away. But as Cruz has learned from his time aboard Orion, true explorers must never give up. Even after...

Nat Turnbull, a history professor who specializes in the German resistance, is only mildly surprised when his estranged mentor, Gordon Wolfe, is arrested for possession of stolen World War II archives. But what's in the archives is staggering: a spymaster's trove, missing since the end of the war, one that Gordon has always claimed is full of 'secrets you can't find anywhere else, live ammunition.'