How to write an addicting novel series (a thought process post)

If anyone reads my blog you probably won't understand this post. It's for my own benefit. I'm trying to be a better writer. Always trying to improve my writing skills. I had thoughts on what gets me addicted to certain TV shows and novel series. It's the underlying plots. I have to be hooked for the long haul as a reader to even consider reading the next book in a series, and I want to get good at incorporating addicting themes into my own books.

So firstly, be sure to have a bad guy or conund...