Your Code Name is Jonah

Back in print after a 25-year wait, Your Code Name is Jonah drops you into a high-stakes Cold War mission where your choices shape the outcome. You are an American spy racing to protect fragile secrets—and the lives wrapped around them—without blowing your cover. Marine biologist Claude Dumont has just decoded a new whale song with the power to unlock deep-sea mysteries, but his discovery draws KGB attention and kidnapping. As the reader, you navigate a tense web of espionage and oceanic intrigue, deciding whom to trust, which leads to one of 27 endings. Edward Packard crafts the suspense with interactive branching, inviting both young readers and adults to re-enter the Choose Your Own Adventure world you loved. Part of the Choose Your Own Adventure Retro Editions, this title preserves the classic feel while delivering modern readability and momentum.

Who might be interested in reading?

• Fans of choose-your-own-adventure stories who enjoy branching endings and player agency.
• Readers who love espionage thrills blended with ocean science and wildlife.
• Young readers and adults who enjoy puzzle-solving, risk, and moral choices.
• Nostalgic fans of retro adventure books seeking a fresh yet faithful reprint.