three o’clock in the morning
The thermometer marked a hundred and forty-nine degrees in the sun , and a veritable rain of fire filled the air . This was the most intense heat that they had yet noted . Joe arranged their bivouac for that evening , as he had done for the previous night ; and during the watches kept by the doctor and Kennedy there was no fresh incident . But , toward three o'clock in the morning , while Joe was on guard , the temperature suddenly fell ; the sky became overcast with clouds , and the darkness increased . `` Turn out ! '' cried Joe , arousing his companions . `` Turn out !