“I want you, Vidder, to go out on the road and watch,” came in the voice of Jabez Trask. “Put on that cowhide with the horns to-night.” “All right,—but I am pretty tired,” croaked the voice of an old man. “Never mind—you can sleep all day to-morrow,” answered Jabez Trask. “You, Jepson, guard all the doors. If anybody comes, why—the trap—you know!” “Indeed I do!” answered another voice, shrill and harsh. “I am going to make another hunt to-night,” went on Jabez Trask. “I must find that will. That boy is watching me and I don’t like it.” “Wish you would find the will,” growled the old man called Vidder. “Then we’d get our money.” “Right you are. Now begone, so I can get to work,” went on Jabez Trask. The men in the room began to move, and the cadets and Bert crouched out of sight behind some boxes and barrels. Then two of the men came out and left the mill. A moment later Jabez Trask appeared, lantern in hand. “I’ll follow up that new clue to-night,” the boys heard the miser mutter. “Let me see, what was it? Third stone from the top, sixth stone from the left. William Robertson wrote that in the note-book, and it must mean something. If I can get that will, and destroy it, the fortune will be mine, all mine!” Lantern in hand, Jabez Trask crossed the room and entered another apartment. The boys heard him going down a flight of stone steps. “I am going after him,” whispered Bert, excitedly. “He thinks he is going to locate that will! Maybe I got here just in time!” CHAPTER XXX A FIND OF IMPORTANCE—CONCLUSION “Don’t make a noise—or you may spoil it all,” whispered Jack. He caught Bert by the arm, and as silently as shadows the pair followed the old miser down the flight of stone steps, and the others came after them. They saw that Jabez Trask had entered a room that was almost a vault, being built of stone and about ten feet square. The miser had placed his lantern on the floor and was counting the stones on one of the walls. “That’s not right,” the boys heard him mutter to himself. “This wall has eighty-six stones in it. I want the one with seventy-six—seventy-six, like the Revolutionary year. Let me see,” and he commenced to count the stones in another of the four walls. This, too, was a disappointment, and then he went at the third. Then he gave a chuckle of satisfaction. “Seventy-six, clean and clear!” he muttered. “This must be the wall. Now then, sixth stone from the left, third stone from the top. Ha! here it is! Now to find out what is behind it!” He brought forth a chisel and commenced to pry on the stone. It came from the wall with ease, revealing an opening behind it. “The box! The box at last!” almost shrieked the miser, and putting his arm into the opening he drew forth a black, metal box, covered with dirt and mildew.