Presently the boy stopped rowing. “Say, dad, we’ve not had our usual luck to-day,” he remarked, glancing disgustedly at the two tiny mackerel which represented their afternoon’s sport. Mr. Morgan roused himself. “No, old man, those aren’t much to boast about. And I’m afraid we shall have to go in now. The tide’s beginning to run and I expect we could both do with a bit of supper. Let’s change places and you have a go at the lines while I pull in.” To anyone attempting navigation in the Burry Inlet the tides are a factor of the first importance. With a rise and fall at top springs of something like twenty-five feet, the placid estuary of high water becomes a little later a place of fierce currents and swirling eddies. The Inlet is shallow also. At low tide by far the greater portion of its area is uncovered and this, by confining the rushing waters to narrow channels, still further increases their speed. As the tide falls the great Llanrhidian Sands appear, stretching out northward from the Gower Peninsula, while an estuary nearly four miles wide contracts to a river racing between mud banks five hundred yards apart. Mr. Morgan took the oars, and heading the boat for the northern coast, began to pull slowly shoreward. He was the manager of a large tin-plate works at Burry Port and lived on the outskirts of the little town. Usually a hard worker, he had taken advantage of a slack afternoon to make a last fishing excursion with his son before the latter’s return to school. The two had left Burry Port on a flowing tide and had drifted up the inlet to above Llanelly. Now the tide was ebbing and they were being carried swiftly down again. Mr. Morgan reckoned that by the time they were opposite Burry Port they should be far enough inshore to make the harbor. Gradually the long line of the Llanelly houses and chimneys slipped by. Evan had clambered aft and at intervals he felt with the hand of an expert the weighted lines which were trailing astern. He frowned as he glanced again at the two mackerel. He had had a good many fishing trips with his father during the holidays, and never before had they had such a miserable catch. How he wished he could have a couple of good bites before they had to give up! The thought had scarcely passed through his mind when the line he was holding tightened suddenly and began to run out through his fingers. At the same moment the next line, which was made fast round the after thwart, also grew taut, strained for a second, then with a jerk slackened and lay dead. Evan leaped to his feet and screamed out in excitement: “Hold, daddy, hold! Back water quick! I’ve got something big!” The line continued to run out until Mr. Morgan, by rowing against the tide, brought the boat relatively to a standstill. Then the line stopped as if anchored to something below, twitching indeed from the current, but not giving the thrilling chucks and snatches for which the boy was hoping.