Half past eleven
`` I wonder what Dodge will do on number three to-night , '' yawned Anstey , just before the three tentmates fell asleep . `` Oh , I wonder what it will be , '' grinned Greg . Then the three went sound asleep . Dick turned later and awoke just in time to hear the voice of a sentry calling : `` Half past eleven ! Post number one , and all 's we-ell ! '' Then , a little further away , another voice took up the refrain : `` Post num-ber two , and all 's we-ell ! '' `` Jupiter ! ''