Jonas Bubble drew back astounded, eying Wallingford with affrighted incredulity. He had thought this young man sane.

“Black—” he gasped; “black—” and then hesitated.

Mud!” finished Wallingford for him, more impressively than before. “High and low, far and near, Mr. Bubble, I have searched for a deposit of this sort. Wherever there was a swamp I have been, but never until I came to Blakeville did I find what I believe to be the correct quality of black mud.”

“Black mud,” repeated Jonas Bubble meaninglessly, but awed in spite of himself.

Etruscan black mud,” corrected Wallingford. “The same rare earth out of which the world famous Etruscan pottery is manufactured in the little village of Etrusca, near Milan, Italy. The smallest objects of this beautiful jet-black pottery retail in this country from ten dollars upward. With your permission I am going to express some samples of this deposit to the world-famous pottery designer, Signor Vittoreo Matteo, formerly in charge of the Etruscan Pottery, but who is now in Boston waiting with feverish impatience for me to find a suitable deposit of this rare black mud. If I have at last found it, Mr. Bubble, I wish to congratulate you and Blakeville, as well as myself, upon the acquisition of an enterprise which will not only reflect vast credit on your charming and progressive little town, but will bring it a splendid accession of wealth.”

Mr. Bubble rose from his chair and shook hands with young Wallingford in great, though pompous, emotion.

“My son,” said he, “go right ahead. Take all of it you want—that is,” he hastily corrected himself, “all you need for experimental purposes.” For, he reflected, there was no need to waste any of the rare and valuable Etruscan black mud. “I think I’ll go with you.”

“I’d be pleased to have you,” said Wallingford, as, indeed, he was.

On the way, Wallingford stopped at Hen Moozer’s General Merchandise Emporium and Post-Office, where he bought a large tin pail with a tight cover, a small tin pail and a long-handled garden trowel which he bent at right angles; and seven people walked off of Hen Moozer’s porch into the middle of the street to see the town magnate and the resplendent stranger, driven by the elated Bob Ranger, whirl down Maple Street toward Jonas Bubble’s swamp.

Arrived there, who so active in direction as Jonas Bubble?