Motor Matt in Brazil; or, Under The Amazon

Motor Matt is the kind of young adventurer who lives for the hum of an engine and the thrill of the open sea. When his sleek submarine, the Grampus, suddenly lurches under a mysterious shock on the way to Brazil, he and his trusty side‑kick Dick Ferral must wrestle with a crippled rudder, stalled turbines, and a rapidly filling ballast. The scene is set in the churning waters of the Gulf of Paria, where the crew’s calm, split‑second decisions keep the vessel from capsizing.

From that tense moment, Matt’s quick thinking turns disaster into a daring rescue, as he orders the ballast emptied with compressed air and brings the craft back to the surface. The sudden appearance of a massive bull‑cachalot through the periscope adds a splash of wonder to the unfolding drama. With the Amazon’s mysteries just beyond the horizon, the story promises more high‑speed chases, exotic ports, and the unshakeable spirit of a motor‑savvy hero.