It required no word of instruction, no exhortation, to tell this dog what to do. Gathering himself with all his strength, the lean hound leaped from the deck of the _Jules Verne_ directly into the water. No one told him to go; none had an opportunity to hold him in check. "Fismes! Fismes! Good old dog! Go to it!" screamed Jay in sheer delight. Almost breathlessly the crowd on the ship watched the dog. As though guided by some uncanny power the dog swam straight and true in the direction of the floating object. Was it the body of a man? Was it the form of Dick Monaghan? The dog knew not; he sensed only the fact that something was floating out there in the water, and it was something that all eyes on board were watching. "Good dog, Fismes!" they were shouting. On and on the faithful canine swam with all the strength of his slim legs. And soon he had reached the side of this mysterious object and set his teeth in it. They who were shouting encouragement from the _Jules Verne_ saw all this and marveled at the strength of the animal. They saw him take a firm hold. They saw him stop for an instant. They saw him start to swim again, this time toward the ship--and towing the object along through the water as best he could! Only a dog--but what a wonderful animal! Swimming superbly and maintaining a vise-like grip on the salvaged object. A mighty shout arose from the deck of the _Jules Verne_. "It's Monaghan," came the cry from Superintendent Brown, who had rushed into the wheel-house for a pair of glasses that he might get a closer view of the magnet that had lured the dog into the water. "Hurrah! it's Dick! Hurrah for Fismes!" screamed Jay in a perfect delirium of joy. And Dick it was. By this time the rescue boat had arrived alongside and dragged both the inert form of Dick and the wet, tousled dog into the dory. One of the sailors was tugging at the blouse of the rescued diver and feeling for the heart pulse. The other two pulled with all their might for the _Jules Verne_. "He's still alive," the sailor shouted as the dory came alongside. "Thank God for that!" cried Jay as he bent over the rail of the _Jules Verne_ looking down into the face of his chum. The eyes were closed and the body crumpled in an inert mass. But life still remained, and surely the spark that remained could be fanned again into a flame! Tenderly they took the unconscious Brighton youth aboard. Expert hands began working over him immediately. First the water was drained out of the throat and lungs. Then next the pulmotor was brought into action. Every device known in the resuscitation of the drowned was applied under the direction of Captain Austin. And in the meantime a lean brown German police dog answering to the name of Fismes was being patted and fêted by an admiring throng!