Of course all the boys wished they could do some of the acrobatic work that Mart was to do on the stage. But though some of the lads of Bellemere, like Bunny Brown, were pretty good at turning somersaults or flipflops, none of them was equal to Mart, who had been on the stage for several years. But he was training Bunny, Harry Bentley, Charlie Star and George Watson to do a leap-frog dance which Mr. Treadwell said would be very funny.