Unbreakable: The Spies Who Cracked the Nazis' Secret Code

A Booklist Best Book of the Year
A Chicago Public Library Best Book of the Year

“A thrilling adventure of intrigue and daring worthy of the best James Bond stories and made all the better because it’s completely true. A common refrain throughout the story is, ‘Never repeat something you want kept secret.’ So let me say twice, to ensure that word gets out, ‘Read this book. Read this book.’” –James Ponti, New York Times best-selling author of City Spies

* “A riveting true-life adventure story combining brains, courage, and heart.” –Kirkus, starred review

* “Engagingly told as a grim race against time, deeply researched, and with ample space for the play of differing perspectives and outsized personalities … highly recommended.” –School Library Journal, starred review

“ Suspenseful writing… Highly recommended.” –Booklist, starred review

“A breathlessly told account of clandestine operations whose success contributed to the war’s end.” –Publishers Weekly, starred review

* “Barone delivers another impressive feat of narrative nonfiction storytelling.” –Horn Book Magazine, starred review

“A taut, suspenseful story. Here is a war that few people know, a race among brains with freedom at stake, brought vividly to life by.” –Phillip Hoose, author of the National Book Award winning and Newbery Honor book Claudette Colvin: Twice Toward Justice

“A captivating tale of perseverance and grit, Barone kept me on the edge of my seat, reading well into the night. I could not put it down. ” –Beth McMullen, author of the Mrs. Smith’s Spy School for Girls series and the Lola Benko, Treasure Hunter series

Praise for Race to the Bottom of the Earth:

FOUR starred reviews!

“I raced to the end of this book!” –Alan Gratz, New York Times-bestselling author of Refugee

“A nail-biting tale of adventure, tragedy, and superhuman determination.” –Elizabeth Wein, #1 New York Times-bestselling author

“A huge treat for adventure story fans–not one, but two incredible races across the fearsome and fascinating Antarctic!” –Steve Sheinkin, New York Times-bestselling author

“Absorbing, compelling, and truly touching. Kids will love this book!” –Deborah Heiligman, YALSA Excellence in Nonfiction Award-winning author

“A riveting tribute to epic tests of men against the elements.” –Kirkus, starred review

“A compelling narrative focused on science and technology, embedded in a cluster of thrilling adventure stories … Highly -recommended.” –School Library Journal, starred review

“Readers will be caught up in the real-time action sequences.” –Booklist, starred review

“Exemplary.” –BCCB, starred review

Rebecca E. F. Barone holds a Bachelor of Arts in English and a Bachelor of Science in mechanical engineering from Bucknell University along with multiple graduate degrees in mechanical engineering. Her technical projects include injury analysis for the National Football League, and her short-form STEM writing has been published in the award-winning Muse magazine. She is passionate about serving and mentoring underrepresented populations in STEM and has continued to mentor in the kidlit arena with her participation in the #kidsneedmentors program. She is also the author of Race to the Bottom of the Earth: Surviving Antarctica (which received four starred reviews).

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