“A barn?” queried Philo Gubb.

“I been sleepin’ in a barn,” said Greasy. “I thought youse knowed it. I been doin’ a piece or two of scene paintin’ for them Kalmucks, and I sort of hired a barn to do it in, and so long as I had to have the barn I just slept in it. Keeps me up late,” he said, yawning, “seein’ my lady-friend till midnight and then paintin’ scenery till I don’t know when.”

“I presume you ain’t spent much time on your motor-boat of late times,” said Mr. Gubb.

“Ain’t had no time,” said Greasy briefly.

Detective Gubb, as he pasted paper on the walls of the Himmeldinger house, turned various matters over and over in his mind. His clues pointed as clearly to Greasy as the Great Dipper points to the North Star. He had decided to join the posse on the Haddon P. Rogers when she set out on her next voyage of vengeance, but now he changed his mind.

A barn, large and vacant, would be an excellent place in which to hide the proceeds of a pirate raid. Lest—possibly—the barn should recognize him and hide itself, Mr. Gubb first went to his office in the Opera House Building, disguised himself as a hostler, with cowhide boots, a cob pipe, a battered straw hat, and blue jean trousers. Lest his face be recognized by the barn he wore a set of red under-chin whiskers, which would have been more natural had they been a paler shade of scarlet. Thus disguised, he crept softly down the Opera House Building stairs and ran full into Billy Getz, Riverbank’s best example of the spoiled only-son species, and the town’s inveterate jester. Mr. Getz put a hand on Mr. Gubb’s arm.

“Sh-h!” he said mysteriously. “Not a word. Only by chance did I recognize you, Mr. Gubb. Now, about this pirate business—it has to stop.”

“I am proceeding to the deteckative work preliminary to so doing,” said Mr. Gubb.

“Good!” said Billy Getz. “Because I can’t have such things happening on my Mississippi River. I hate to see the dear old river get a bad name, Mr. Gubb. I’m just organizing the Dear Old River Anti-Pirate League—to suppress pirates, you know. And we want you as our official detective. In the meantime—Greasy! That’s all I say—just Greasy! Tough-looking character. Lives in a barn.”