`` i will be glad when we are back in dover ; what a miserable swamp , '' jane said , already blotting her forehead on her sleeve as she left the small barracks-house : the london setting added , to the attractions of stifling heat and the heavy moisture-laden air , all the city 's unrivaled stench , and the mingling of barnyard scents with the acrid stink of the small covert 's presently overburdened dragon-middens .