The Bletchley Riddle

Ruta Sepetys (rutasepetys.com) is an internationally acclaimed, #1 New York Times bestselling author of historical fiction published in over sixty countries and forty languages. Her novels Between Shades of Gray, Out of the Easy, Salt to the Sea, The Fountains of Silence, and I Must Betray You have won or been shortlisted for more than forty book prizes, and are included on more than sixty state award lists. Between Shades of Gray was adapted into a graphic novel, and the film Ashes in the Snow, and her other novels are currently in development for TV and film. She is also the author of You: The Story. A Winner of the Carnegie Medal, Ruta is passionate about the power of history and literature to foster global awareness and connectivity. She has presented to NATO, to the European Parliament, in the United States Capitol, and at embassies worldwide. Ruta was born and raised in Michigan and now lives with her family in Nashville, Tennessee. Follow her on Twitter and Instagram @RutaSepetys, and on Facebook at facebook.com/RutaSepetys

Steve Sheinkin is the acclaimed author of fast-paced, cinematic nonfiction histories, including Impossible Escape, Fallout, Undefeated, Born to Fly, The Port Chicago 50, and Bomb. His accolades include a Newbery Honor, three Boston Globe–Horn Book Awards, a Sibert Medal and Honor, and three National Book Award finalist honors. He lives in Saratoga Springs, New York, with his wife and two children. He can be found online at SteveSheinkin.com. Follow him on Twitter @SteveSheinkin and on Facebook at facebook.com/Steve.Sheinkin.