A stunning collaboration between award-winning and bestselling authors Ruta Sepetys and Steve Sheinkin, this middle grade historical adventure follows two siblings at Bletchley Park, the home of WWII codebreakers, as they try to unravel a mystery surrounding their mother’s disappearance. Remember, you are bound by the Official Secrets Act… Summer, 1940. Nineteen-year-old Jakob Novis and his quirky younger sister Lizzie share a love of riddles and puzzles. And now they’re living inside of one. The quarrelsome siblings find themselves amidst one of the greatest secrets of World War II—Britain’s eccentric codebreaking factory at Bletchley Park. As Jakob joins Bletchley’s top minds to crack the Nazi's Enigma cipher, fourteen-year-old Lizzie embarks on a mission to solve the mysterious disappearance of their mother. The Battle of Britain rages and Hitler’s invasion creeps closer. And at the same time, baffling messages and codes arrive on their doorstep while a menacing inspector lurks outside the gates of the Bletchley mansion. Are the messages truly for them, or are they a trap? Could the riddles of Enigma and their mother's disappearance be somehow connected? Jakob and Lizzie must find a way to work together as they race to decipher clues which unravel a shocking puzzle that presents the ultimate challenge: How long must a secret be kept?

WOULD BLETCHLEY PARK--THE TOP-SECRET HOME OF BRITISH WORLD WAR II CODEBREAKERS--HAVE RECRUITED YOU? PUT YOUR MENTAL AGILITY TO THE TEST WITH THESE FIENDISHLY CHALLENGING PUZZLES AND FIND OUT. Have a knack for mastering Morse code? Want to discover whether your crossword hobby might have seen you recruited into the history books? Think you could have contributed to the effort to crack the Nazis' infamous Enigma code? Then this book about Bletchley Park was custom-made for you. When scouring the population for codebreakers, Bletchley Park recruiters left no stone unturned. They devised various ingenious mind-twisters to assess the puzzle-solving capacity of these individuals--hidden codes, cryptic crosswords, secret languages, and complex riddles. These puzzles, together with the fascinating recruitment stories that surround them, are contained in this book, endorsed by Bletchley Park itself. Though they had diverse backgrounds, the codebreakers of Bletchley Park were united in their love of a good puzzle. If you are of the same persuasion, put your intelligence to the test with the mind-boggling puzzles on these pages and ask yourself: Would Bletchley Park have recruited YOU?

The nonfiction debut by #1 New York Times bestselling and Carnegie Medal-winning author Ruta Sepetys. Perfect for fans of Burn After Writing and Bird by Bird. Life is story in motion. Each day, you add to your story, revise it, and view it from a different angle. You erase things. Tear pages out. And sometimes, in hindsight, wish you could put them back. A day is a story. A year is a story. A life is a story. You are a story. Ruta Sepetys is known for creating vivid characters and harrowing plots. After five award-winning works of historical fiction and countless hours of meticulous research, she can affirm that the secret to strong writing is embedded within your life experience. You: The Story is a powerful how-to book for aspiring writers that encourages you to look inward and excavate your own memories in order to discover the authentic voices and compelling details that are waiting to be put on the page. Masterfully weaving in humorous and heartfelt stories from her own life that illustrate an aspect of the craft of writing (such as plot, character development, or dialogue), Sepetys then inspires readers with a series of writing prompts and exercises. Perfect for fans of Burn After Writing and Bird by Bird, You: The Story awakens the emerging writer and reveals that with some reflection, curiosity, and courage, you have a story to tell.

Cryptography’s essential role in the functioning of the city, viewed against the backdrop of modern digital life. Cryptography is not new to the city; in fact, it is essential to its functioning. For as long as cities have existed, communications have circulated, often in full sight, but with their messages hidden. In Cryptographic City, Richard Coyne explains how cryptography runs deep within the structure of the city. He shows the extent to which cities are built on secrets, their foundations now reinforced by digital encryption and cryptocurrency platforms. He also uses cryptography as a lens through which to inspect smart cities and what they deliver. Coyne sets his investigation into the cryptographic city against the backdrop of the technologies, claims, and challenges of the smart city. Cryptography provides the means by which communications within and between citizens and devices are kept secure. Coyne shows how all of the smart city innovations—from smart toasters to public transportation networks—are enabled by secure financial transactions, data flows, media streaming, and communications made possible by encryption. Without encryption, he says, communications between people and digital devices would be exposed for anyone to see, hack, and misdirect. He explains the relevant technicalities of cryptography and describes the practical difference it makes to frame cities as cryptographic. Interwoven throughout the book are autobiographical anecdotes, insights from Coyne’s teaching practice, and historical reports, making it accessible to the general reader.

You've already broken codes in Sinclair McKay's bestselling Bletchley Park Brainteasers, now it's time to pit your wits against the secret heroes of MI5 and MI6 and find out if YOU have what it takes to be a spy! If you cracked the GCHQ Puzzle Book and followed the Ordnance Survey Puzzle Book, you MUST show off your James Bond credentials with Secret Service Brainteasers. . . Whether you have linguistic flair, an instinct for technology or good old common sense, pit your wits against some of the greatest minds of our time with ingenious brainteasers including secret languages, sabotage themed brain bogglers, deadly countdowns and hidden codes. Weaving astonishing stories of the men and women who operate from the shadows, the secret heroes and heroines of MI5 and MI6 who have faced extraordinary and terrifying challenges and a wide range of mind twisting puzzles, Secret Service Brainteasers will test your mental agility to discover: Do YOU have what it takes to be a spy?

'Lively...in giving us the daily details of their lives in the women's own voices Dunlop does them and us a fine service' New Statesman 'Dunlop is engaging in her personal approach. Her obvious feminine empathy with the venerable ladies she spoke to gives her book an immediacy and intimacy.' Daily Mail 'An in-depth picture of life in Britain's wartime intelligence centre...The result is fascinating, and is made all the more touching by the developing friendships between Dunlop and her interviewees.' Financial Times The Bletchley Girls weaves together the lives of fifteen women who were all selected to work in Britain's most secret organisation - Bletchley Park. It is their story, told in their voices; Tessa met and talked to 15 veterans, often visiting them several times. Firm friendships were made as their epic journey unfolded on paper. The scale of female involvement in Britain during the Second World War wasn't matched in any other country. From 8 million working women just over 7000 were hand-picked to work at Bletchley Park and its outstations. There had always been girls at the Park but soon they outnumbered the men three to one. A refugee from Belgium, a Scottish debutante, a Jewish 14-year-old, and a factory worker from Northamptonshire - the Bletchley Girls confound stereotypes. But they all have one common bond, the war and their highly confidential part in it. In the middle of the night, hunched over meaningless pieces of paper, tending mind-blowing machines, sitting listening for hours on end, theirs was invariably confusing, monotonous and meticulous work, about which they could not breathe a word. By meeting and talking to these fascinating female secret-keepers who are still alive today, Tessa Dunlop captures their extraordinary journeys into an adult world of war, secrecy, love and loss. Through the voices of the women themselves, this is a portrait of life at Bletchley Park beyond the celebrated code-breakers, it's the story of the girls behind Britain's ability to consistently out-smart the enemy, and an insight into the women they have become.

This collection of 140 intriguing and challenging codebreaking puzzles are produced in association with the Bletchley Park Trust. Follow in the footsteps of World War II codebreakers and decode the encrypted messages within. These puzzles include: • Anagrams • Logical reasoning • Encryption word problems • Logic grids •And more! ABOUT THE SERIES: This series of fun and stylish puzzle books are produced in association with the Bletchley Park Trust, a vibrant and fascinating heritage site celebrating the World War II codebreakers who were stationed there.

New York Times bestselling author Steve Sheinkin presents a follow up to his award-winning book Bomb: The Race to Build--and Steal--the World's Most Dangerous Weapon, taking readers on a terrifying journey into the Cold War and our mutual assured destruction. As World War II comes to a close, the United States and the Soviet Union emerge as the two greatest world powers on extreme opposites of the political spectrum. After the United States showed its hand with the atomic bomb in Hiroshima, the Soviets refuse to be left behind. With communism sweeping the globe, the two nations begin a neck-and-neck competition to build even more destructive bombs and conquer the Space Race. In their battle for dominance, spy planes fly above, armed submarines swim deep below, and undercover agents meet in the dead of night. The Cold War game grows more precarious as weapons are pointed towards each other, with fingers literally on the trigger. The decades-long showdown culminates in the Cuban Missile Crisis, the world's close call with the third—and final—world war. A Shelf Awareness Best Children's Book of 2021 A Chicago Public Library Best of the Best Book of 2021 A Horn Book Fanfare Best Book of the Year Praise for BOMB: A Newbery Honor book A National Book Awards finalist for Young People's Literature A Washington Post Best Kids Books of the Year title “This is edge-of-the seat material that will resonate with YAs who clamor for true spy stories, and it will undoubtedly engross a cross-market audience of adults who dozed through the World War II unit in high school.” —BCCB, starred review “...reads like an international spy thriller, and that's the beauty of it.” —School Library Journal, starred review “[A] complicated thriller that intercuts action with the deftness of a Hollywood blockbuster.” —Booklist, , starred review “A must-read...” —Publishers Weekly, starred review “A superb tale of an era and an effort that forever changed our world.” —Kirkus Also by Steve Sheinkin: The Notorious Benedict Arnold: A True Story of Adventure, Heroism & Treachery The Port Chicago 50: Disaster, Mutiny, and the Fight for Civil Rights Undefeated: Jim Thorpe and the Carlisle Indian School Football Team Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War Which Way to the Wild West?: Everything Your Schoolbooks Didn't Tell You About Westward Expansion King George: What Was His Problem?: Everything Your Schoolbooks Didn't Tell You About the American Revolution Two Miserable Presidents: Everything Your Schoolbooks Didn't Tell You About the Civil War Born to Fly: The First Women's Air Race Across America

Pit your wits against the brilliant minds of Scotland Yard and see if you have what it takes to solve dozens of the world's toughest crimes. "Scotland Yard" conjures up so much more than just London's Metropolitan Police. Since it opened its doors in 1829, Scotland Yard has been synonymous the world over with the highest level of detective work and famous for its ability to solve the most macabre of murders and catch the most audacious of thieves. The Scotland Yard Puzzle Book mines the history of this famous institution to recreate some of the most complex conundrums its detectives have ever faced. Armchair detectives can now try their hand and keen powers of observation and deduction to solve for themselves dozens of the most difficult and challenging cases. Activities include: Anagrams and cryptograms Logic, linguistic, and mathematical puzzles Map puzzles Coded and visual puzzles Brainteasers Hidden messages And more (answers are provided in the back of the book)!

** WINNER OF 'STOCKING FILLER OF THE YEAR AWARD' GUARDIAN ** Pit your wits against the people who cracked Enigma in the official puzzle book from Britain's secretive intelligence organisation, GCHQ. 'A fiendish work, as frustrating, divisive and annoying as it is deeply fulfilling: the true spirit of Christmas' Guardian 'Surely the trickiest puzzle book in years. Crack these fiendish problems and Trivial Pursuit should be a doddle' Daily Telegraph If 3=T, 4=S, 5=P, 6=H, 7=H ...what is 8? What is the next letter in the sequence: M, V, E, M, J, S, U, ? Which of the following words is the odd one out: CHAT, COMMENT, ELF, MANGER, PAIN, POUR? GCHQ is a top-secret intelligence and security agency which recruits some of the very brightest minds. Over the years, their codebreakers have helped keep our country safe, from the Bletchley Park breakthroughs of WWII to the modern-day threat of cyberattack. So it comes as no surprise that, even in their time off, the staff at GCHQ love a good puzzle. Whether they're recruiting new staff or challenging each other to the toughest Christmas quizzes and treasure hunts imaginable, puzzles are at the heart of what GCHQ does. Now they're opening up their archives of decades' worth of codes, puzzles and challenges for everyone to try. In this book you will find: - Tips on how to get into the mindset of a codebreaker - Puzzles ranging in difficulty from easy to brain-bending - A competition section where we search for Britain's smartest puzzler Good luck! 'Ideal for the crossword enthusiast' Daily Telegraph