```js const axios = require('axios'); const epub = require('epub-gen');

axios.get('http://www.gutenberg.org/files/2701/2701-0.txt'). then(res => res.data). then(text => { text = text.slice(text.indexOf('EXTRACTS.')); text = text.slice(text.indexOf('CHAPTER 1.'));

const lines = text.split('\r\n');
const content = [];
for (let i = 0; i < lines.length; ++i) {
  const line = lines[i];
  if (line.startsWith('CHAPTER ')) {
    if (content.length) {
      content[content.length - 1].data = content[content.length - 1].data.join('\n');
    }
    content.push({
      title: line,
      data: ['<h2>' + line + '</h2>']
    });
  } else if (line.trim() === '') {
    if (content[content.length - 1].data.length > 1) {
      content[content.length - 1].data.push('</p>');
    }
    content[content.length - 1].data.push('<p>');
  } else {
    content[content.length - 1].data.push(line);
  }
}

const options = {
  title: 'Moby-Dick',
  author: 'Herman Melville',
  output: './moby-dick.epub',
  content
};

return new epub(options).promise;

}). then(() => console.log('Done')); ```