"Tain't go'n' to do no harm to them gals thet's stoppin' here, is it?"

"It is to do them a good turn that I'm sending this telegram."

"Honor bright?"

"Hope to die, Bub."

"All right; I'm off."

He folded the letter, placed it inside his Scotch cap and stowed the money carefully in his pocket.

"Don't let any of the folks see you if yon can help it," warned Sarah; "and, whatever happens, don't say anything about that telegram to a living soul. Only--see that it's sent."

"I'm wise," answered Bub and a moment later he started the car and rolled away down the road.

Sarah Judd looked after him with a queer smile on her face. Then she went back to her kitchen and resumed her dish-washing. Presently a scarcely audible sound arrested her attention. It seemed to come from the interior of the Lodge.

Sarah avoided making a particle of noise herself as she stole softly through the dining room and entered the main hallway. One glance showed her that the front door was ajar and the door of the den closed--exactly the reverse of what they should be. She crept forward and with a sudden movement threw open the door of the den.

A woman stood in the center of the room. As the door opened she swung around and pointed a revolver at Sarah. Then for a moment they silently faced one another.

"Ah," said the woman, with an accent of relief, "you're the servant. Go back to your work. Mrs. Conant told me to make myself at home here."

"Yes, I know," replied Sarah sarcastically. "She said she was expecting you and told me it wouldn't do any harm to keep an eye on you while you're here. She said Miss Lord was going to get all the family away, so you could make a careful search of the house, you being Miss Lord's maid, Susan--otherwise known as Nan Sh.e.l.ley, from the Washington Bureau."

Susan's hand shook so ridiculously that she lowered the revolver to prevent its dropping from her grasp. Her countenance expressed chagrin, surprise, anger.

"I don't know you," she said harshly. "Who are you?"

"New at the game," replied Sarah Judd, with a shrug. "You don't know me, Nan, but I know you; and I know your record, too. You're as slick as they make 'em, and the one who calls herself Agatha Lord is just an infantile amateur beside you. But go ahead, Nan; don't let me interrupt your work."

The woman sank into a chair.

"You can't be from the home office," she muttered, staring hard at the girl. "They wouldn't dare interfere with my work here."

"No; I'm not from the home office."

"I knew," said Susan, "as soon as I heard the story of your coming, that it was faked. I'd gamble that you never saw Mrs. Morrison in your life."

"You'd win," said Sarah, also taking a chair.

"Then who could have sent you here?"

"Figure it out yourself," suggested Sarah.

"I'm trying to. Do you know what we're after?"

"A clew to Hathaway. Incidentally, any other information concerning him that comes your way. That includes the letter."

"Oh. So you know about the letter, do you?" asked Susan.

"To be sure. And I know that's what you're here for now. Don't let me interrupt you. It's a mighty hard job, finding that letter, and the folks'll be back by and by."

"You're right," exclaimed the woman, rising abruptly. "Go back to your work in the kitchen."

"This is my occupation, just now," retorted Sarah, lolling in her chair. "Go ahead with your search, Nan, and I'll tell you when you are 'hot' or 'cold.'"

"You're an impudent little chit," said Nan tartly. "See here," with a sudden change of voice, "let's pool issues. If we can discover anything important in this place, there's reward enough for us all."

"I am not opposing you," protested Sarah Judd, "I'm not a particle interested in whether you trace Hathaway or not. I don't believe you can do it, though, and that letter you're so eager for won't help you a bit. It was written ten years ago."

"That makes it more important," declared the other, "We've two things to accomplish; one is to locate Hathaway, and the other to secure absolute proof of his guilt."

"I thought he was caught doing the job."

"So he was, in a way. But the Department needs more proof."

Sarah Judd smiled unbelievingly. Then she chuckled. Presently she laughed outright, in genuine merriment, as the thought that amused her grew and expanded.

"What fools--" she said, "what perfect fools--we mortals be!"

All this annoyed Nan Sh.e.l.ley exceedingly. The successful woman detective did not relish being jeered at by a mere girl.

"You've read the letter, I suppose, and are now making fun of me for trying to get it? Perhaps you've hidden it yourself--although that isn't likely. Why can't you give me an honest tip? We're both in the same line, it seems, and both trying to earn an honest living. How about that letter? Is it necessary for me to find it?"

"I've read it," admitted Sarah, "and I know where it is. You might perhaps find it, if you hunted long enough, but it isn't worth your while. It wouldn't help in the least to convict Hathaway and of course it couldn't tell you where he is now hiding."

"Is this straight?"

"True as gospel."

"Then why don't you prove it by showing me the letter?"

"Because I don't belong on your side of the fence. You're working for one organization and I for another. Any little tip I let slip is just for your personal use. Don't bother about that letter."

Susan--or Nan Sh.e.l.ley--sat for a time in thought. Once in a while she would cast a furtive glance around the room and its wall covered with trophies, and then she would turn to Sarah Judd's placid face.

"Where did the boy go?" she asked abruptly.

"What boy?"

"Bub; in the automobile."

"To Millbank."

"What for?"

"To send a telegram."