"I think so too; but they want more handling. However, I expect we could manage it."

They had now got out their implements, consisting of a shovel, a large rake, and a couple of baskets, on sh.o.r.e, and fastening the boat with a grapnel, went to the place where experience had taught them it was best to dig, and were soon at work. The c.o.c.kles were for the most part buried some five or six inches in the sand, and were found in great numbers; the two elder boys digging and raking while Joe picked them up, and threw them into the baskets. As these were filled Bill carried them down on his shoulder to the boat, put the baskets into the water, gave them a heave or two to wash some of the sand off the c.o.c.kles, and then emptied them into the boat.

It was a broad-beamed craft, of over twenty feet long, and would carry more than a ton of c.o.c.kles if filled up.

The sun had long been up, the clouds were flying fast across the sky, and the wind was working round to the east, knocking up a short choppy sea as it met the ebb, and covering the river with white horses.

The boys worked away st.u.r.dily, ceasing occasionally from their labours to go down and shove the boat further off as the tide fell. At six it was dead low. They had each brought with them a bag with some bread and cheese, and a tin of cold tea, and now sat down on the gunwale of the boat for breakfast. Having finished that meal, they continued their work till nine o'clock, by which time they had got several bushels on board.

"Look there!" Joe exclaimed suddenly; "there is a big steamer has run on to the Middle Ground."

The boys had just thrown down their spade and rake, and had agreed to knock off, and they now ran across to the outside of the strip of sand, which had by this time narrowed very considerably.

"She will get off easy enough as the tide rises," Joe said; "but they won't be able to back her off now."

"No; she does not move in the least," Jack agreed. "Her screw is working hard astern now. Look how high her head is. She has run a long way up with wind and tide and steam. She must have gone on it hard."

"She had best get a couple of anchors out astern," Bill said, "before she gets broadside on."

This was evidently also the view of the captain, as two boats were lowered and anchors got into them. But it is no easy matter to row a boat with a heavy weight in it against wind and tide; and before they had got fairly away from the vessel she had already swung round a considerable distance, and was heeling over a good deal from the force of the wind and tide. It was nearly half an hour before the boats were far enough off to get the anchors over with any effect.

"They won't dare to haul on them now," Joe said. "They would only come home. Those anchors ain't heavy enough to work her stern round. I expect when a tug comes along they will get them to help, else she will keep on driving higher and higher."

"Hallo!" The exclamation came from Jack, who now happened to look round towards the boat. They had accidentally taken their stand on the highest point of the sand-bank, and in watching the steamer had forgotten all about the tide, which, under the influence of a north-east wind, had risen with great rapidity. The patch of dry sand was scarcely fifteen yards wide, and would be entirely covered in a very few minutes.

"Look, Bill, the boat has gone!"

It was true. The grapnel, a very light one, with a short length of rope, had been thrown carelessly down on the sand when they last hauled the boat up, and as the full strength of the tide had caught the boat, it had dragged a considerable distance, and was drifting away up the Ray.

"What is to be done?" Joe exclaimed.

"Do you think we could wade along to the island, Bill?" Jack asked.

Bill shook his head. "No; there are deep channels where it would be over our heads. I can't swim a stroke, no more can Joe."

"Shall I swim to the boat, Bill, and try and get her back?"

Joe shook his head. "She is in deep water now, Jack, and the grapnel ain't holding her a bit; she will drift as fast as you can swim. But of course you can try if you like, it don't make any difference to us, for you could never beat back against this wind and tide. What fools we have been, to be sure!"

"The boats will soon be coming back now," Jack said hopefully. "There are some of them this side of the Chapman now."

Bill shook his head. "It will take them three quarters of an hour to beat up, Jack."

Jack turned and looked the other way. "Here are three of them coming in from the Nore, Bill. They will not be very long before they are up."

"They will be here before the others, Jack; but I doubt if they will be in time. Water will be breast-high before they get up, and they may drop anchor down at the mouth of the Ray, and not see us. Our best chance is the sh.o.r.e."

He shaded his eyes and looked steadily across at Leigh. "There is a man running from the coast-guard station," he said. "There! there are two or three others running to meet him. Now they are going back together."

The boys stood looking fixedly at the station.

"Hooray!" Jack said after a minute; "there comes the boat out of the house. Do you see they are getting her down the slip; now she is in the water." Another minute pa.s.sed, and then a white sail appeared. "She is heading straight off to us, Bill. With this wind she will be here in a quarter of an hour."

But the tide was already half-way up to their knees, and the waves beginning to splash against them.

"Will they be here in time, do you think, Bill?" Joe asked.

"I hope so, Joe," Bill said cheerily. "They would be in plenty of time if it were not for the force of the tide. Still, I think it is all right."

The minutes pa.s.sed rapidly; higher and higher rose the water, and the waves increased fast in size. It was as much as the boys could do to stand against the sweep of the stream.

"Bill, you had better take Joe on your shoulders," Jack said. "I have read that one man can carry another across a stream that he couldn't get over alone."

"Jump up, young un," Bill said; "and you, Jack, get off your sea-boots.

You stand just behind me and hold on, I feel much steadier now that I have got Joe on my shoulders. If you feel that you are going, leave go of me, you will only pull me backward holding on; and as you can swim you are all right. You have only got to keep yourself afloat, the tide will drift you up to the island in no time."

"I don't mean to go if I can help it," Jack said. "Of course I could not swim with you two, but if you would lie on your back quiet I might manage to keep you up for a bit anyhow."

The boat, heeling far over to the breeze, was dashing along at a great pace towards them. It was a question of minutes. Jack found it extremely difficult to keep his feet, the sand seemed to be scooped out from under them by the force of the tide. The wind, which was blowing in violent gusts, added to the difficulty of withstanding the force of the current and waves.

"Don't pull, Jack," Bill said, "or you will have us over."

"I can't hold on without, Bill. Which shall I do? Swim off alone, or hold on by you till we all go together?"

"Go off by yourself, Jack; the boat will be here in five minutes now. I think I can hold on until then; anyhow, it is the best chance."

They were now waist-deep; for, little by little, as the sand gave way under their feet, they had been driven backwards towards deeper water.

"There is one other thing, Bill. Do you think you can shift Joe so as to sit on one shoulder? If I get on your other it will add to your weight."

"I will try it," Bill said; "I was nearly off my feet then. Get on to my left shoulder, Joe. Now Jack, you climb up. Yes, I think that is better. I should be all right if the sand would not slide away so much from under my feet."

Several times Jack felt Bill totter and sway; he was fast being swept back into the deeper water.

"If you do go, Bill, do you and Joe throw yourselves on your backs, and I will try and hold you up. The boat will be here in no time now."

She was indeed less than a hundred yards away when Bill exclaimed, "I am going!"

"Keep on your back, Bill!" Jack shouted as he went backwards under water.

The three came up close together. Jack seized the others by the hair, and throwing himself on his back, and striking out with his legs, tried to keep them in a similar position with their faces above water. Bill lay quietly enough; but Joe struggled to raise his head, and turning, grasped Jack round the body, and in a moment the three were under water.

Jack kept his presence of mind; he knew that the boat was close at hand, and strove, not to loosen the grasp of his companions, which was impossible, but to come to the surface occasionally for an instant.

Two or three times he managed this, and obtained a breath of air before he went under again. The last time, he saw the boat close at hand, and a rope fell across his face; but he could not free his hands to grasp it, and went under immediately. His senses were leaving him, when he felt something grasp him, and then knew no more till he opened his eyes, and found himself in the bottom of the boat with his two companions.