When the saints begin to pray for the situations and crazy things going on in the natural, things begin to happen in the spiritual. These books will cause you to think about prayer, and how you can make a difference in the spiritual when you really take time to get a hold of God for something. I heard a preacher once say that what we see going on in the natural is often a reflection of the spiritual. When you see people struggling with rebellion, attitudes, or just getting into things they shouldn't, it is because there are spirits behind it. When things start going crazy in your world and nothing seems right, there is probably a battle going on in the spiritual.
These books start off exciting and stay exciting all the way through. I'm the kind of person that has trouble finishing the book if the first few chapters are extremely boring. If you want to read novels that will be both exciting and thought provoking, I suggest you give these two a try.