Agree with Robin and would add that your could create RSS /latest/ feeds that you could add at the bottom of your hub chapters.
This could have a number of advantages:
1. each time a new hub is created, all hubs will be updated with the latest chapter.
2. you can manipulate the RSS feeds with tags and thereby order the chapters if you are not producing them in order.
3. the RSS feeds can be added to RSS feed sites and thereby push your chapters to a wider audience than just hubpages.
Be aware that your story is not likely to obtain a great readership and that it will be difficult to monetise. That is unless you undertake an inordinate amount of promotion.
You might be better creating an e-Book and publishing yourself.
If the RSS feed idea is of interest then you can find details on how to achieve this from my RSS hubs or those that have been produced by a number of good hubbers.