During all this time, I never stopped thinking about escape . When I travelled across to the other side of the island, I could see the other islands, and I said to myself, "Perhaps I can get there with a boat. Perhaps I can get back to England one day." So I decided to make myself a boat. I cut down a big tree, and then began to make a long hole in it. It was hard work, but about six months later, I had a very fine canoe . Next, I had to get it down to the sea. How silly I was! Why didn't I think carefully before I began to work? Of course, the canoe was too heavy. I couldn't move it! I pulled and pushed and tried everything, but it didn't move. I was very unhappy for a long time after that. In my sixth year on the island, I did make myself a smaller canoe, but I did not try to escape in it. The boat was too small for a long journey, and I did not want to die at sea. The island was my home now, and I was just happy to be alive. A year or two later, I made myself a second canoe on the other side of the island. I also built myself a second house there, and so I had two homes. I kept food and tools at both of my houses, and also wild goats. There were many goats on the island, and I made fields with high fences to keep them in. They learnt to take food from me, and soon I had goats' milk to drink every day. I also worked hard in my corn fields. And so, many years went by. This story is mainly about how the writer  _  .
kept goats in the fields escaped from the island built houses by himself survived on the island