All these things were the money the white people used when they wished to buy food, or land, or boats, or houses from the people who lived in the islands.

It was very awkward to have to carry yards and yards of cloth instead of silver coins or bank notes! But bank notes and coins would have been of no use to the islanders; so the only way to do was to take to them what they wished, and the things the John Williams carried in her hold were the things they liked best.

Round many of the islands in the Pacific lie reefs. The reefs are built of coral by tiny insects, and they rise from a great depth almost to the surface of the water. The mingling colours of the coral are very wonderful when they are seen through the liquid blue and green of the waves.

But although these reefs are beautiful, they are very dangerous. If a ship runs upon one, the great waves quickly dash her to pieces as they break over her.

There are openings where the reef is broken for a short distance, or where its crest lies so far under the surface of the water that boats may safely enter the calm bays that lie within.

Very few ships had sailed in those seas fifty years ago. The captains had to guess where the reefs lay. Sometimes they sailed slowly, dropping a long line with a weight at the end of it, to find out if the ship had entered more shallow water. This is called “heaving the lead.”

As the John Williams sailed near the first island at which she was to anchor, her passengers were watching the shore; they were delighted with the beauty of the island. It was a clear afternoon, and the rich land and trees offered a kind welcome to those who were to work there. Those who meant to go farther on, to other islands, thought that if this first stopping-place were like the others, there would, for them too, be much to enjoy.

The reefs amongst which their vessel was sailing were beautiful, and their eyes were dazzled by the glisten and glimmer of colour under the water at the ship’s side.

All at once those who were not standing very firmly on the deck were thrown down, and every one was trying not to believe the truth. But very soon no one could doubt it. Their beautiful ship had run on an unseen rock. She had all sail set and was going fast, so it was with a great crash that she struck.

Every one thought of what must be done to save the ship and her cargo. If they had had time to look round they would have seen hundreds of dark men running about the shore and hauling canoes to the water’s edge. In a very short time the canoes were all round the ship, and the men were clambering up on deck.