Hub pages is about adding lots of quality content. If you create multiple quality hubs, people will find your content. Take a look at some of the top hubbers here, they have hundreds of hubs created over time. Adding only 1 hub is unlikely to generate much of anything. Its the body of work that does it - people read a topic they are interested in, see your work and then want to see more that you have written.
Additionally, like everything else, your traffic will dramatically increase if you promote your hubs outside of hubpages. Bookmark you hubs. Comment about your hubs on forums. Join facebook groups and promote your writing and hubs etc.
As far as earning a lot of money from advertising, it is unlikely. If you are writing fiction, people are there for entertainment usually and not looking for a solution to a problem. People looking for solutions will click ads, because they are researching or working on the topic they are reading about. If an ad purports to solve their issue or give the information they want, they click it. That is the whole reason contextual advertising works. You will get some clicks and make some money.
If you are mostly interested in the money, create some non fiction hubs on interesting topics which have a high payout from adsense. There is no reason why you cannot create both types, people do it all the time.