* number</li>
* <li>A description of the story must be given as chapter number 0</li>
* <li>A cover may be present, with the same filename but a PNG, JPEG or JPG
* number</li>
* <li>A description of the story must be given as chapter number 0</li>
* <li>A cover may be present, with the same filename but a PNG, JPEG or JPG