midnight
`` There has been fighting up in the north , too , '' Sir Edmund said . `` When I got to Ruthyn , I found that Lord Grey was away ; but I talked over matters with his knights . I was to have left on the morning of the fifth day after leaving here , but at night Glendower 's men raided almost up to the gates of the castle . Their plans were well laid ; for , just at midnight , an alarm was given by a sentry on the walls . Everyone ran to arms , the instant the warder 's horn was sounded ; but when I reached the top of the walls , fires were bursting out in twenty places . It was not long before the knights rode out , with a hundred and fifty men-at-arms , but the Welsh were already gone . It seems that they had laid an ambuscade round every village and , on the signal being given , fell at once upon the sleeping inhabitants , put all to the sword , fired the houses ; and in ten minutes from the first alarm made off , driving horses , cattle , and sheep before them .