eleven o’clock at night
Then they enjoyed one of the grandest spectacles that Nature can offer to the gaze of man . Below them , the tempest ; above them , the starry firmament , tranquil , mute , impassible , with the moon projecting her peaceful rays over these angry clouds . Dr. Ferguson consulted the barometer ; it announced twelve thousand feet of elevation . It was then eleven o'clock at night . `` Thank Heaven , all danger is past ; all we have to do now , is , to keep ourselves at this height , '' said the doctor . `` It was frightful ! '' remarked Kennedy .