Mrs. Robson's face fell. She had expected the news, for every year a considerable number of the Leigh bawleys go down to Harwich and fish off that port for two or three months. The absence of Jack was always a great trial to her. When he was with her she felt that he was safe, for it is an almost unheard-of thing for a bawley to meet with an accident when fishing in the mouth of the Thames; but off Harwich the seas are heavy, and although even there accidents are rare--for the boats are safe and staunch and the fishermen handle them splendidly--still the risk is greater than when working at home. The Leigh men themselves attribute their freedom from accident in no slight degree to the fact that their boats never go out on Sunday. They are God-fearing men these fishermen, and however bad the times, and however hard the pinch, it is seldom indeed that a bawley puts out from Leigh on Sunday, save to the assistance of a vessel in distress. The excursionists who go down in summer weather to Margate and Ramsgate scarcely think that ships could be cast away and broken up upon the hidden sands beneath the sparkling waters. They know not that scarce one of these sands but at low water is dotted with low, black timbers, and that there are few more dangerous pieces of navigation in the world than the passage up the mouth of the Thames on a wild night when a fierce gale is blowing and the snow and sleet driving before it, obscuring the guiding lights that mark the channels between the sands. The _Bessy_--for so Ben Tripper had named his bawley, after his favourite sister--was lying on the mud just above Leigh. A fishy smell pervaded the air, for close by were the boiling-sheds, with their vast heaps of white cockle-shells. These were dug by the cocklers either from the sand at the end of the Canvey Island or on the Maplin Sands somewhere off Shoebury. The large boats often return deeply laden with them. On reaching Leigh the cockles are thrown out in great heaps by the side of the creek, where they are covered at each tide. Here they are left to clean themselves, and to get rid of the sand they have taken in when burrowing. Two or three days later they are carried up to the boiling-houses and thrown into great coppers of boiling water. They open at once, and the fish drop from the shells. The contents of the coppers are passed through large meshed sieves, to allow the fish to pass through and retain the shells, which go to add to the heaps outside. These heaps would in time rival in size the cinder tips of the Midlands were it not that there is a use for the shells. They make splendid lime, and are sometimes taken away in barge-loads and carried to town, where they are used instead of gravel in the parks, making, when crushed, the whitest and tidiest of paths.