"Ah! because I get air. But I only open it and go out after it's dark, I assure you."

"Well, you've got plenty of stores. I bring you bread and fresh meat and vegetables, and you've got the cistern full of water. Why, if I went away for for a month or six weeks you wouldn't starve. I always see to that. And look what it costs me!" exclaimed the humble insurance agent.

"Ah! Nibby. Dear little Nibby!" cried the weird man from upstairs in that inhuman, high-pitched voice, as he noticed the tame rat dart across the threadbare carpet.

"Yes, Nibby knows you!" laughed the man Boyne. "He's a dear little fellow, isn't he?"

"Yes. I miss him after so long," replied the man. "Can't I take him upstairs with me?" he asked piteously.

"No, he would gnaw through the door to get back to me, and old mother Felmore would find rats in the place. She knows of Nibby, but we don't want to arouse her curiosity. Women, deaf or not, are always dangerous when one has secrets."

"And how is Mrs. Pollen—eh?"

"Mrs. Pollen!" echoed Boyne. "Whom do you mean?"

"Why, Ena Pollen, the friend of Lilla. You know the woman—tall, handsome, red-haired. She worked a dirty trick upon some man she met. They had supper at the Ritz. He died, and nobody suspected. Ugh! Isn't it funny how one can lead a crooked life and everyone think one perfectly honest?"

"Well, you're not honest, my dear Lionel," laughed Bernard Boyne. "If it had not been for me I repeat you'd have been hanged for that affair two years ago."