McCartney, with his gangs, was blocking up the ends of the three doubtful spans, but boats adrift, if the flood chanced to be a high one, might endanger the girders; and there was a very fleet in the shrunken channel. "Get them behind the swell of the guardtower," he shouted down to Peroo. "It will be dead-water there. Get them below the bridge." "Heh! Listen to the Chota Sahib.