The thriliing story of the adventures and rivalry of a couple of youthful representatives of the Army and Navy--the corvette, on board which the middy is serving, conveying at detachment of infantry, with its ensign, up one of the Malay rivers. Here encounters with the unfriendly, and unions with the friendly Malays follow, calls being made upon the lads to show the thorough English stuff of which they are made, during many a time of trial.