The music stopped. The dancers scattered to the chairs along the walls. Terry O’Sullivan, with his entrancing bow, relinquished a pretty girl in blue to her partner and started back to find Maggie. Dempsey intercepted him in the middle of the floor.

Some fine instinct that Rome must have bequeathed to us caused nearly every one to turn and look at them—there was a subtle feeling that two gladiators had met in the arena. Two or three Give and Takes with tight coat-sleeves drew nearer.

“One moment, Mr. O’Sullivan,” said Dempsey. “I hope you’re enjoying yourself. Where did you say you lived?”

The two gladiators were well matched. Dempsey had, perhaps, ten pounds of weight to give away.The O’Sullivan had breadth with quickness. Dempsey had a glacial eye, a dominating slit of a mouth, an indestructible jaw, a complexion like a belle’s and the coolness of a champion. The visitor showed more fire in his contempt and less control over his conspicuous sneer. They were enemies by the law written when the rocks were molten. They were each too splendid, too mighty, too incomparable to divide pre- eminence. One only must survive.

“I live on Grand,” said O’Sullivan insolently; “and no trouble to find me at home. Where do you live?”

Dempsey ignored the question.

“You say your name’s O’Sullivan,” he went on. “Well, ‘Big Mike’ says he never saw you before.” “Lots of things he never saw,” said the favourite of the hop.

“As a rule,” went on Dempsey, huskily sweet, “O’Sullivans in this district know one another. You escorted one of our lady members here, and we want a chance to make good. If you’ve got a family tree let’s see a few historical O’Sullivan buds come out on it. Or do you want us to dig it out of you by the roots?”

“Suppose you mind your own business,” suggested O’Sullivan blandly.

Dempsey’s eyes brightened. He held up an inspired forefinger as though a brilliant idea had struck him.

“I’ve got it now,” he said cordially. “It was just a little mistake. You ain’t no O’Sullivan. You are a ring- tailed monkey. Excuse us for not recognizing you at first.”

O’Sullivan’s eye flashed. He made a quick movement, but Andy Geoghan was ready and caught his arm.

Dempsey nodded at Andy and William McMahan, the secretary of the club, and walked rapidly toward a door at the rear of the hall. Two other members of the Give and Take Association swiftly joined the little group. Terry O’Sullivan was now in the hands of the Board of Rules and Social Referees. They spoke to him briefly and softly, and conducted him out through the same door at the rear.

This movement on the part of the Clover Leaf members requires a word of elucidation. Back of the association hall was a smaller room rented by the club. In this room personal difficulties that arose on the ballroom floor were settled, man to man, with the weapons of nature, under the supervision of the Board. No lady could say that she had witnessed a fight at a Clover Leaf hop in several years. Its gentlemen members guaranteed that.

So easily and smoothly had Dempsey and the Board done their preliminary work that many in the hall had not noticed the checking of the fascinating O’Sullivan’s social triumph. Among these was Maggie. She looked about for her escort.

“Smoke up!” said Rose Cassidy. “Wasn’t you on? Demps Donovan picked a scrap with your Lizzie-boy, and they’ve waltzed out to the slaughter-room with him. How’s my hair look done up this way, Mag?”