"Codes can carry big secrets! Throughout history, lots of good guys and lots of bad guys have used codes to keep their messages under wraps. This fun and flippable nonfiction features stories of hidden treasures, war-time maneuverings, and contemporary hacking as well as explaining the mechanics behind the codes in accessible and kid friendly forms. Sidebars call out activities that invite the reader to try their own hand at cracking and crafting...

In the heart of Italy, Harvard professor of symbology Robert Langdon is drawn into a harrowing world centered on one of history's most enduring and mysterious literary masterpieces--Dante's "Inferno"--as he battles a chilling adversary and grapples with an ingenious riddle.

""You are to report to Station X at Bletchley Park, Buckinghamshire, in four days time....That is all you need to know." This was the terse telegram hundreds of young women throughout the British Isles received in the spring of 1941, as World War II raged. As they arrived at Station X, a sprawling mansion in a state of disrepair surrounded by Spartan-looking huts with little chimneys coughing out thick smoke-these young people had no idea what kind...

King, Kayla, Mason, and Asia are playing in the snow. Later, Asia discovers her new gold ring is missing. What happened to it? Detective team King & Kayla are on the case! With simple, straightforward language and great verbal and visual humor, the King & Kayla series from Geisel Honor Award-winning team Dori Hillestad Butler and Nancy Meyers is perfect for newly independent readers transitioning from easy readers to beginning chapter books. Great...

Amy and Dan cross the oceans on the trail of a famous aviator, but they find more than they're looking for. Their enemies are becoming more vicious, and the truths they discover more crushing than ever.

"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...

"Cruz and his fellow recruits tackle challenging missions to dispense life-saving medication to gorillas, thwart pangolin poachers, and capture images of the last known cheetahs in Namibia--all the while discovering that protecting the world's threatened species is a dangerous business. Things turn deadly for Lani, Sailor, Emmett, and Cruz as they search for the fourth piece of Cruz's mom's cipher. Cruz knows it's not going to be easy, but will an...

Vega Jane has never left the village of Wormwood. But this isn't unusual, nobody has ever left the village of Wormwood. At least not until Quentin Herms vanishes into the unknown. Vega knows Quentin didn't just leave, but that he was chased. And he's left behind a very dangerous trail of clues that only she can decode. The Quag is a dark forest filled with terrifying beasts and bloodthirsty Outliers. But just as deadly are the threats that exist within...

Geronimo Stilton, which was originally written in Italian, is a tale about a talking mouse that lives in New Mouse City on Mouse Island, where he works as a journalist for The Rodent's Gazette. Included here are adventure books fifteen and sixteen: A Cheese-Colored Camper and The Mona Mousa Code.

When Iranian-American Kamran Smith learns that his big brother, Darius, has been labelled a terrorist, he sets out to piece together the codes and clues that will save his brother's life and his country from a deadly terrorist attack.