three o'clock
At night they are certain to come up closer to the mouth of the cave . Perhaps we may be able to get a shot at them then without exposing ourselves . Surely , if they try to enter here we can quickly drive them back . '' The rest of the afternoon up to three o'clock was spent in dodging bullets . Exactly on the hour of three there came an interruption that startled every one of the cave dwellers . A rattling fire sprang up , but no bullets came their way . Hippy held up his hand for silence , and listened .