英语翻译
One morning,the boy came to Robert with a beautiful map of an island.Robert noticed that the boy had drawn a large cross in the middle of the island.“What’s that ” he asked.“That’s the buried treasure,” said the boy.Robert suddenly saw something of an adventure story in the boy’s picture.While the rain was pouring,Robert sat down by the fire to write a story.He would make the hero a twelve-year-old boy,just like Lloyd.But who would he the pirate（海盗）?
请标准翻译（不要机器翻译的）,