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 eye 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 recognising 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?”