Motor Matt Makes Good; or, Another Victory For the Motor Boys

Three adventurous boys—Matt, Carl, and Dick—find themselves on the deck of the submarine Grampus, gliding through the dark waters off the Chilean coast. A thick fog rolls in from the Andes, swallowing the moon and stars, while phosphorescent trails flicker beneath the hull. Suddenly a cluster of glowing lights darts across their path, prompting bewildered commentary and a quick maneuver to avoid a collision. The mystery of the luminescent phenomenon sets the tone for a high‑stakes underwater chase.

As the Grampus presses northward, the crew discovers they are not alone: hostile forces lurking beneath the surface launch a torpedo that forces the boys into a race against time. With motor skills, quick thinking, and the bond of their friendship, they navigate a maze of danger, from faulty equipment to an unexpected foe. Their courage and ingenuity promise another victory for the Motor Boys, even as new challenges loom on the horizon.