By Deborah Hopkinson, Author. Bertie Bradshaw never set out to become a spy. He never imagined traipsing around war-torn London, solving ciphers, practicing surveillance, and searching for a traitor to the Allied forces. He certainly never expected that a strong-willed American girl named Eleanor would play Watson to his Holmes (or Holmes to his Watson, depending on who you ask). But when a young woman goes missing, leaving behind a coded notebook, Bertie is determined to solve the mystery. With the help of Eleanor and his friend David, a Jewish refugee—and, of course, his trusty pup, Little Roo—Bertie must decipher the notebook in time to stop a double agent from spilling the biggest secret of all to the Nazis. For ages 8 and up.