In the summer of 1916, ten year-old Chet Roscow is captivated by the local news: a Great White shark has been attacking and killing people up and down the Atlantic Coast, not far from Chet's hometown of Springfield, New Jersey. Then one day, swimming with his friends, Chet sees something in the water ...

"A nonfiction manuscript for young readers about a group of Allied spies and codebreakers that cracked the Nazis's infamous cypher, allowing them to read secret military messages and turn the tide of World War II. During WWII, as the Germans waged war, every Nazi plan, every attack, was sent over radio. But to the Allies listening in, the messages sounded like gibberish. The communications were encoded with a powerful cypher-unless you could unlock...