about two in the morning
The girls had prepared an extra good supper , and of this they ate heartily and then sat around a little while , when they went to bed . At the beginning the castaways had kept guard during the night , but of late this had been done away with , everybody being satisfied that no harm could befall them during the darkness . But as the doorway to the house was an open one it had been considered the duty of one or the other to sleep directly in the opening . This was Dick 's night , and the eldest Rover lay there sleeping soundly until about two in the morning . By this time the moon had disappeared and the stars were partly hidden by some clouds . The night was quiet , save for the hum of insects in the jungle back of the house and the soft lap-lap of the waves on the beach of the bay . Suddenly Dick awoke with a start .