six o'clock
At the end of a week the miners began to raise some very likely-looking stone ! and Grainger , finding some jars of muriatic acid among the stores belonging to the battery , made some further tests of the tailings with results which gave him the greatest satisfaction . He , however , said nothing about this to his new mates , intending to give them a pleasant surprise later on in the week before he left on his journey to the coast . At six o'clock one evening , just as the men were returning from the claim for supper , Jacky , the black boy , was seen coming along the track at a fast canter . He had been out looking for some cattle belonging to Jansen the landlord , which had strayed away among the ranges . `` What 's the matter , Jacky ? '' asked the men , as the boy jumped off his horse .