Five On A Kirrin Island Again english Novel by Enid Blyton

Five on Kirrin Island Again by Enid Blyton is the sixth book in the beloved Famous Five series. When George's scientist father returns to Kirrin Island to work on a top-secret experiment, the Five soon realize that dangerous spies are determined to steal his discovery. Faced with mystery, suspense, and unexpected danger, Julian, Dick, Anne, George, and Timmy must work together to protect the secret and save the day.