eight o'clock
It came down night . It was a good night for my purpose , dark and shadowless , with a mere sliver of a new moon in the sky . I had little difficulty in gaining entrance to the cabin . After the eight o'clock muster , when my watch was sent below , I slipped around the corner of the roundhouse , where the tradesmen lived -LRB- it was on the maindeck , between the mainmast and the after-hatch -RRB- and crouched there in the darkness while my mates trooped forward . This roundhouse -LRB- which was really square , of course , like most roundhouses on board ship -RRB- was very plentifully supplied with ports . Designedly so , no doubt , for it was the cabin 's outpost . There were two portholes in its forward wall , commanding the foredeck , and three portholes in either of the side walls .