"It is! It is!" exclaimed Dora. "What in the world is she doing out alone in such a downpour as this!"
As the girl on the road came closer to the touring car Dick threw up one of the curtains, opened the door, and sprang out to meet her.
"Oh, Mr. Rover!" gasped Ada Waltham, "is it really you? How fortunate! Won't you please help me?"
"What's wrong?" he demanded quickly.
"Chester! He's lost!"
"Lost! Where?"
"He tried to cross the river yonder in the storm, and the bridge broke and let the automobile down. I managed to save myself and jumped ashore, but he was carried off by the torrent." The rich girl clasped her hands nervously. "Oh, please save him, Mr. Rover! Please do!"
By this time the second automobile had come up, and Dick waved to Tom to stop. Seeing that something was wrong, Tom quickly alighted, followed by Sam.
"What's wrong?" came from both of the new arrivals, as they gazed at Ada Waltham in astonishment.
"Miss Waltham says her brother is lost—that he has been carried off in the flood of yonder river," answered Dick.