"But you must let me pay!" urged Miss O'Hara. "One of the things Uncle Haddon said was, 'If you ever lose that dog, Dolly, hire Detective Gubb. Understand? He's a wonderful detective. He'll leave no stone unturned. He'll find your dog. He'll pry the roof off the dog-house to find a flea, and when he's found the flea he'll hunt up a blond dog to match it. Remember,' he said, 'if you lose the dog, get Gubb.'"

"I consider the compliment the highest form of flattery," said Mr.

Gubb.

"So I want you to try to find Waffles, please, if it isn't beneath you to hunt a dog," said Miss O'Hara. "How much will you charge to find Waffles, Mr. Gubb?"

"I'd ought to have five dollars--" Mr. Gubb began doubtfully.

"Of course!" exclaimed Miss O'Hara. "Why, I expected to pay far more."

"Well and good," said Mr. Gubb. "And now, how aged was the dog when he was purloined away from you?"

Philo Gubb secured a complete history of the dog. Miss O'Hara had brought, also, two photographs of Waffles in pleasing poses, and when she left, Mr. Gubb accompanied her to the late home of Waffles. It was there he gathered the clues over which he was poring with his microscope when Mr. Higgins came to ask him to step across the hall and to offer him two hundred dollars if he could produce Mustard Bilton. Mr. Gubb went across the hall.

"Gubb," said Judge Mackinnon, when he had introduced the detective to Mrs. Kinsey and Mrs. Doblin, "was Mustard Bilton in this office when you signed your name to these wills?"

"No, sir, he was not present in person," said Mr. Gubb. "He was elsewhere."

"Well, ladies," said the Judge, "it seems to me that until we can find Mustard we cannot proceed. Mr. O'Hara's last will--whichever it is--must be probated. If I took this will to the courthouse, whichever side happened to be uppermost would be probated first and the other side would naturally appear on the record as the latest will. It is a responsibility I do not care to undertake. If you will not agree to compromise and divide the estate--"

"Never!" said both ladies.

"We must find Mustard!" said the Judge.

Mr. Gubb went into the hall, but Lawyer Burch followed him.

"Gubb," he said, "just a word! Find Mustard for me. Now, don't talk--find him. Bring Mustard to Judge Mackinnon's office and I'll put two hundred dollars in your hand! That's all!"

Detective Gubb returned to his office and resumed his work on his lost dog clues. One by one he submitted the clues to inspection under the microscope. He tried the five processes of the Sherlock Holmes inductive method on them. By some strange quirk, quite out of keeping with the usual detective-story logic, he could make nothing of them.

Even the flea in the bit of dog hair did not point direct to the location of the dog. They were blind clues. Mr. Gubb swept them into an empty envelope, sealed the envelope, put on his hat and went out.

On the stair he met Judge Mackinnon.

"Well, if O'Hara meant to have a little joke--and he did--he's had it," said the Judge with a chuckle. "You should have been in that room just now. Cat fights? Those two women all but jumped on each other with claws and teeth. I don't know why O'Hara wanted to worry them, but he has paid them back well for whatever they ever did to him."

"And the dog has disappeared away, too," said Mr. Gubb. "I am proceeding on my way at the present time to help discover where the dog is."

"Hope you find the poor child's pet," said the Judge as he turned off in the opposite direction.

Mr. Gubb proceeded to the late home of Haddon O'Hara. He followed the brick walk to the back of the house. He was already familiar with the premises.

The dog-house--the only recently painted structure in the neighborhood--stood opposite the kitchen door. It was perhaps three feet in height and four feet long, with a pointed roof. As a door it had an open arch, and at one side of this was a staple to which a chain could be attached. The gra.s.s in front of the dog-house was worn away, leaving the soil packed hard. The detective, arriving at the dog-house, walked around it, gazing at it closely.

The inductive method had failed--as it always failed for Mr. Gubb--and he meant now to try following a clue in person, if he could find a clue to follow. Mr. Gubb dropped to his hands and knees and crept around the dog-house, seeking a clue hidden in the gra.s.s. When he reached the front of the dog-house he paused.

"Ye look that like a dog I was thinkin' ye'd howl for a bone," said Mrs. Mullarky suddenly from the kitchen door.

Mr. Gubb turned and eyed her with disapproval.

"The operations of deteckating are strange to the lay mind," he said haughtily. "Those not understanding them should be seen and not heard."

"An' hear the man!" cried Mrs. Mullarky. "Does a dog-house drive all of ye crazy? T' see a human bein' crawlin' around on his four legs an'

callin' it detectin' where a dog is that ain't there! Go awn, if ye wish! Crawl inside of ut!"

"I'm going to do so," said Mr. Gubb, and he did.

Inside, or as far inside as he could get, Mr. Gubb struck a match and examined the floor of the house. There was straw on it, but nothing even remotely suggesting a clue. No dog thief had left a glove there.

Mr. Gubb began to back out, and as he backed his head touched something softer than a pine board. He craned his long neck and looked upward. Tacked to the inside of the roof of the house was a long envelope. Mr. Gubb put up his hand and pulled it loose. Then he backed into the daylight. He sat on the bare spot before the dog-house and examined the envelope.

The envelope was sealed, but on the face of it was written:--

To be delivered to Judge Mackinnon, after Waffles has been returned to his house and home. Waffles will be found in the old cattle-shed on the Illinois side of the river, north from the turnpike at the far end of the bridge. H. O'H.

It was a clue! Without stopping to silence the scornful laughter of Mrs. Mullarky, Philo Gubb jumped to his feet and made for the Illinois side of the long bridge as rapidly as his long legs could carry him.

He reached the old cattle-shed and there he found Mustard Bilton seated at the door, smoking a cob pipe in lazy comfort.

"Come for the dog?" asked Mustard carelessly. "Sort of thought you'd come for him about now. Been expectin' you the last couple o' days."

"Expecting me?" said Philo Gubb. "I've been doing deteckative work on this case--"

"Yes, Had' O'Hara reckoned you'd detect around awhile before you got track of me," said Mustard without emotion. "He says, when I'd signed that there will for him, 'Day or so after I kick the bucket, Mustard, you go up and steal Waffles,' he says, 'and fetch him over to the cattle-shed on the Illinoy side,' he says, 'and keep him there until Gubb comes for him. Take a day or so, maybe,' he says, 'for Dolly to remember I told her to get Gubb, and take Gubb a day or two to scrooge round before he hits on the clue I've fixed up to point him to you, but he'll come. He's a wonder, Gubb is,' says O'Hara, 'and no mistake.

If a feller was to steal the sardines out of a can,' he says, 'bet you Gubb would want to see what was inside the empty can before he'd start out to find the feller. You just sit quiet an' wait till Gubb snoops round enough,' he says, 'and he'll come.'"

"You have possession of the Waffles dog at the present time?" asked Detective Gubb.

"In yonder," said Mustard, pointing over his shoulder. "Say, what's the joke O'Hara was cookin' up, anyway?"

"You accompany yourself with me to the office of Judge Mackinnon,"

said Mr. Gubb, "and you'll discover it out for yourself and I'll remunerate you to twenty dollars also. Fetch the dog."

Mr. Gubb, quite properly, left Mustard and Waffles in his own office while he visited Mr. Higgins and Mr. Burch, collecting two hundred dollars from each. Then he turned Mr. Mustard Bilton over to them.

"You signed those wills of O'Hara's," said Mr. Burch when all had gathered in Judge Mackinnon's office. "Do you know which you signed last?"

"Sure, I do," said Mustard.

Mr. Burch handed him the double will.

"Which did you sign last?" asked Mr. Burch energetically.

Mustard took the doc.u.ment and looked at it. The Kinsey side was toward him.

"It wasn't this one," he said positively.

"Ah, ha!" cried Lawyer Higgins, turning the paper over. "Then it was this one you signed last!"

"No," said Mustard, glancing at the Doblin side of the paper. "I signed this'n the same time as I signed the other side of it. I signed both these the first day of the month. The one I signed last I signed on the second of the month."