The Black Eagle swears vengeance on the trader, Bully Blood as he rescues a young lad and his ?Pink Macaw? from the captain?s brutality. Years later, that Captain has become Barnfield Gore; and at a private gambling session, he is poisoned and attacked by a Pink Macaw, even as Sexton Blake watches! More intrigue enters when Detective-Inspector Thomas seeks out Blake to help him with yet another gruesome murder. The investigation of these events is dramatic and results in some ferocious battles for Blake and Tinker!