Twelve-year-old Alvin and his best friend Shoie use their knowledge of codes and ciphers to solve a dangerous mystery.
"synopsis" may belong to another edition of this title.
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Unknown. Condition: Fair. No Jacket. Missing dust jacket; Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0613072243I5N01