But Tom was too young and his vitality too great to give himself up long to despair.  He was a prisoner, but what of it?  He had been a prisoner before and escaped.  To be sure, it was too much to expect to escape by way of the sky as he had before.  Lightning seldom strikes twice in the same place.  But there might be other ways--there should be other ways.  While breath remained in his body he would never cease his efforts to escape.  And sustained and inspired by this resolve, he at last fell asleep.