Through the Wall. Cleveland Moffett

      "Wait!" and, speaking to Tignol in a low tone, M. Paul gave him quick instructions, whereupon the old man hurried across the street and pulled the bell at the doorway indicated.

      "Is he going to see what it was?" asked the spinster eagerly.

      "Yes, he is going to see what it was," and at that moment the door swung open and Papa Tignol disappeared within.

      "Did you happen to see the person who threw this thing?" continued M. Paul gently.

      "No, but I saw his arm."

      Coquenil gave a start of satisfaction. "His arm? Then a man threw it?"

      "Oh, yes, I saw his black coat sleeve and his white cuff quite plainly."

      "But not his face?"

      "No, only the arm."

      "Do you remember the window from which he threw this object?" The detective looked at her anxiously.

      "Yes, indeed, it is easy to remember; it's the end window, on the first floor of the hotel. There!"

      Coquenil felt a thrill of excitement, for, unless he had misunderstood the commissary's diagram, the seamstress was pointing not to private room Number Six, but to private room Number Seven!

      "Lucien!" he called, and, taking his friend aside, he asked: "Does that end window on the first floor belong to Number Six or Number Seven?"

      "Number Seven."

      "And the window next to it?"

      "Number Six."

      "Are you sure?"

      "Absolutely sure."

      "Thanks. Just a moment," and he rejoined the seamstress.

      "You are giving us great assistance," he said to her politely. "I shall speak of you to the chief."

      "Oh, sir," she murmured in confusion.

      "But one point is not quite clear. Just look across again. You see two open windows, the end window and the one next to it. Isn't it possible that this bright thing was thrown from the window next to the end one?"

      "No, no."

      "They are both alike and, both being open, one might easily make a mistake."

      She shook her head positively. "I have made no mistake, it was the end window."

      Just then Coquenil heard the click of the door opposite and, looking over, he saw Papa Tignol beckoning to him.

      "Excuse me," he said and hurried across the street.

      "It's there," whispered Tignol.

      "The pistol?"

      "Yes."

      "You remembered what I told you?"

      The old man looked hurt. "Of course I did. I haven't touched it. Nothing could make me touch it."

      "Good! Papa Tignol, I want you to stay here until I come back. Things are marching along."

      Again he rejoined the seamstress and, with his serious, friendly air, he began: "And you still think that shining object was thrown from the second window?"

      "No, no! How stupid you are!" And then in confusion: "I beg a thousand pardons, I am nervous. I thought I told you plainly it was the end window."

      "Thanks, my good woman," replied M. Paul. "Now go right back to your room and don't breathe a word of this to anyone."

      "But," she stammered, "would monsieur be so kind as to say what the bright object was?"

      The detective bent nearer and whispered mysteriously: "It was a comb, a silver comb!"

      "Mon Dieu! A silver comb!" exclaimed the unsuspecting spinster.

      "Now back to your room and finish brushing your hair," he urged, and the woman hurried away trembling with excitement.

      A few moments later Coquenil and the commissary and Papa Tignol were standing in the courtyard near two green tubs of foliage plants between which the pistol had fallen. The doorkeeper of the house, a crabbed individual who had only become mildly respectful when he learned that he was dealing with the police, had joined them, his crustiness tempered by curiosity.

      "See here," said the detective, addressing him, "do you want to earn five francs?" The doorkeeper brightened. "I'll make it ten", continued the other, "if you do exactly what I say. You are to take a cab, here is the money, and drive to Notre-Dame. At the right of the church is a high iron railing around the archbishop's house. In the railing is an iron gate with a night bell for Extreme Unction. Ring this bell and ask to see the sacristan Bonneton, and when he comes out give him this." Coquenil wrote hastily on a card. "It's an order to let you have a dog named Cæsar—my dog—he's guarding the church with Bonneton. Pat Cæsar and tell him he's going to see M. Paul, that's me. Tell him to jump in the cab and keep still. He'll understand—he knows more than most men. Then drive back here as quick as you can."

      The doorkeeper touched his cap and departed.

      Coquenil turned to Tignol. "Watch the pistol. When the doorkeeper comes back send him over to the hotel. I'll be there."

      "Right," nodded the old man.

      Then the detective said to Pougeot: "I must talk to Gritz. You know him, don't you?"

      The commissary glanced at his watch. "Yes, but do you realize it's after three o'clock?"

      "Never mind, I must see him. A lot depends on it. Get him out of bed for me, Lucien, and—then you can go home."

      "I'll try," grumbled the other, "but what in Heaven's name are you going to do with that dog?"

      "Use him," answered Coquenil.