It had been a night of intense excitement.  Now that they began to beat through the air in the old tuneful way, and there was nothing more to claim their attention until they should arrive at Aden sometime in the morning, Bob and Paul took to their hammocks for sleep, but first Bob got Khartum on the wireless and delivered their position and a brief description of their adventures.  As may be imagined, however, the two youths did not shut their eyes immediately.  There was much to think about and to talk about before even fatigue could get the better of them.