two o'clock in the morning
Keith arrived at Merseburg the next morning . A strong force lay opposite , ready to dispute the passage ; but when Soubise found that the king was crossing by his new bridge , he called in all his detachments and marched away , to a strong position , and there set himself in array ready to receive an attack . Keith 's bridges were finished on the 3rd of November , and that afternoon he crossed and joined Frederick . On the 4th the army was on the move by two o'clock in the morning . A bright moon was shining and , by its light , it was discovered that the enemy had shifted his position for one much stronger , with approaches protected by patches of wood and bog . The Prussian army therefore marched back to their camp , the king hoping that , being so far from their base of supplies , the enemy would be forced ere long to make some movement that would afford him a chance of attacking them under better circumstances . The ground from Weissenfels rises , very gradually , to a height of a hundred and twenty feet or so ; which in so flat a country is regarded as a hill .