six o’clock
`` We 'll have supper first , '' rejoined Glenarvan , `` and then sleep , if we can , till it is starting time . '' The supper was not very reviving without drink of any kind , and they tried to make up for the lack of it by a good sleep . But Paganel dreamed of water all night , of torrents and cascades , and rivers and ponds , and streams and brooks -- in fact , he had a complete nightmare . Next morning , at six o'clock , the horses of Thalcave , Glenarvan and Robert were got ready . Their last ration of water was given them , and drunk with more avidity than satisfaction , for it was filthy , disgusting stuff . The three travelers then jumped into their saddles , and set off , shouting `` _ Au revoir ! _ '' to their companions .