About midnight
Then , directly it was dark , we slipped into a `` white sea . '' That 's a rare sight and it has never been very well explained . The water looks as though it had been mixed with a quantity of milk , but when you dip it up it 's just water . About midnight we ran out of this and Ivy and I turned in . The sky was clear as a bell and even the beasts were quiet . I had n't been asleep ten minutes and Ivy not at all , when all at once hell broke loose . There was a bump that nearly drove my head through a bulkhead ; though only half awake I could feel to the cold marrow of my bones that the old _ Boldero _ was down by the head .