At any rate, the two performers and Eradicate were now hastening toward the young inventor. In a trice they realized that Tom was about to be attacked. But before the knife in Greenbaum’s hand could descend, the man received some missile full in the face with such crashing force that he staggered back. He dropped the knife, and with a cry of pain darted away, being lost to sight in the shadows of the hall. “Good shot!” cried Ned. “Bless my rubber boot, Eradicate hit the scoundrel with a shoe!” exclaimed Mr. Damon. “Dat’s whut I done!” chuckled the negro. “I didn’t have nothin’ else, so I tuck off mah shoe!” Eradicate had big feet and wore heavy brogans, so the hobnailed sole and heel made as effective a weapon for the purpose as could be desired. Recovering from the astonishment into which the unexpected attempt on his life had thrown him, Tom Swift turned about and darted into the lower part of the hall in pursuit of Greenbaum. But he was too late. The slight start which the man had, served him in good stead and he made his escape. Though Tom sounded the alarm and got many of his night watchmen on the job, they could not capture the intruder. Not until it was made certain that he was no longer on the premises did Tom turn his attention to Koku. Eradicate, however, had begun to minister to his fellow guard. Though there was jealousy between the two because each one desired to serve Tom alone, when one was in trouble the other always showed a friendly spirit. “Somebody done chlo’fo’m him!” was Eradicate’s opinion, when Tom and Ned came back from the unsuccessful chase after Greenbaum, to find the giant just recovering consciousness. There was a dazed look on his face, but his eyes opened wider as he saw the fash melon on the floor near where he had fallen from his chair. “Koku no dream then,” he murmured. “What happened?” asked Tom, when he had sent several men to find out, if possible, how Greenbaum had eluded the guard and the electrically charged fence and so had gained entrance to the private laboratory. Then the giant, whose immense bulk was proof against any ordinary means of making him unconscious, told what had taken place. He had been sitting in his chair on guard near Tom’s door after the little talk he had with the young inventor about his desire to have a fash melon once more. Then, as Koku explained it, a little later, there came rolling along the corridor toward his chair one of the very same fruits for which he had such a longing. In a transport of joy at the sight and smell of the dainty, not stopping to consider how strange it was that the fruit should have appeared at such an opportune time, Koku stooped to pick it up. But he never got his hands on it, so he said, for a moment later he “went to sleep,” as he expressed it.