reset, and directly after Christmas came a thrilling robbery. It was Dave, aided by his chums, who got on the track of the robbers, who were none other than Jasniff and Merwell, and trailed them to the South and then to sea, as told in "Dave Porter on Cave Island." After many startling adventures the jewels were recovered and the thieves were caught. But, at the last minute, Link Merwell managed to escape. When Dave Porter returned again to Oak Hall he found himself considered a great hero. But he bore himself modestly, and settled down to hard work, for he wished to graduate with honors. His old enemies were now out of the way and for this he was thankful. But trouble for Dave was not yet at an end. One of the teachers at Oak Hall was Job Haskers, a learned man, but one who did not like boys. Why Haskers had ever become an instructor was a mystery. He was harsh, unsympathetic, and dictatorial, and nearly all the students hated him. He knew the branches he taught, but that was all the good that could be said of him. Trouble came almost from the start, that term, and not only Dave, but nearly all of his chums were involved. A wild man—who afterwards proved to be related to Nat Poole, the son of a miserly money-lender of Crumville—tried to blow up a neighboring hotel, and the boys were thought to be guilty. In terror, some of them feared arrest and fled, as related in "Dave Porter and the Runaways." Dave went after the runaways, and after escaping a fearful flood, made them come back to school and face the music. The youth had a clew against Job Haskers, and in the end proved that the wild man was guilty and that the instructor knew it. This news came as a thunder-clap to Doctor Clay, the owner of the school, and without ceremony he called Haskers before him and demanded his resignation. At first the dictatorial teacher would not resign, but when confronted by the proofs of his duplicity, he got out in a hurry; and all the other teachers, and the students, were glad of it. "And now for a grand wind-up!" Dave had said, and then he and his chums had settled down to work, and later on, graduated from Oak Hall with high honors. At the graduation exercises, Dave was one of the happiest boys in the school. His family and Jessie and several others came to the affair, which was celebrated with numerous bonfires, and music by a band, and refreshments in the gymnasium. "And now what are you going to do?" Laura had asked, of her brother. "First of all,