Books like Summer Dreams: Dual Image/Untamed

In college reading I ended up reading a couple of books that have two stories in one book, that somehow connect with one another. I came to the conclusion after reading this that I probably read too many books that are structured like this, because it quickly became repetitive with certain aspects of all the other similar books, and the stories within them. However with Summer Dreams, Dual Image was the story that caught my attention a bit more out of the two. There was a lot of description and a bit of a different storyline, than Untamed where it took place in a circus.