"It was nearly eleven o'clock when Haskell walked home with her. Then he discovered that he had lost his knife. He had been whittling the tree-trunk with it. "It was a good knife, and he thought it worth while to go back and try to find it. He went back, and after quite a hunt, found it beside the tree. "By this time it was after midnight. On his way home he passed the spot where we are now standing. "Just as he got here, he heard a peculiar noise on the other side of the wall. It seemed strange that anybody should be at work in the garden at that hour, but the sound was as if somebody was using a shovel. "Haskell has more curiosity than a woman. He resolved to find out what was going on inside that garden. "The wall here is pretty high, as you see, but with the help of a piece of board he climbed up so that he could look over. Now, Haskell, tell us just what you saw." Chick and Haskell had come up just as Deever finished his introduction to the story. "I saw Dr. Jarvis digging," said Haskell. "How did you know it was he?" asked Nick. "He had on his dressing-gown and cap," Haskell replied. "I guess pretty near everybody who lives up this way knows those things." "What did you do?" "I watched him a couple of minutes. He seemed to be hard at work digging a hole. I never thought then that it was a grave." "Could you see how big a hole he was making?" "No; he was under the shadow of the trees. I could hardly see him at all there, but just as I got on the top of the wall, he came out for a second or two into the moonlight. Then I saw the old cap and dressing-gown." "Did you see any object lying upon the ground which looked like a body?" "No; it was dark under the tree. The body was probably there." "Why do you say that?" "Well, it couldn't have been anywhere else." "How do you know there was any body ?" "Mr. Deever has told me about his brother. I take it for granted that the doctor was burying him." "Did you tell anybody about this occurrence?" "No." "Why not? It was strange enough." "I didn't think it was strange for him. Everybody knows that the doctor is a sort of crank. When I saw who it was, I just slid down off the wall and went home. I never would have thought of it again if Mr. Deever hadn't spoken to me about his brother." "You can point out the spot where the doctor was digging?" "Sure." "We will make an examination at once." "I thought you'd find out that murder had been done," said Deever. "You'll find out, if you stick to me, that I pretty generally know what I'm talking about." "That's right," said Haskell. "Here come your friends," said Chick, who had not spoken up to that time. Two men were seen coming from St. Nicholas avenue. They carried spades and pickaxes. Thus reinforced, the party proceeded to scale the wall. Just as they did so, the moon, which had been very bright, was obscured by a heavy cloud. It was in darkness, then, that they descended into the garden.