This was a short prequel to Intangible by J. Meyers. This is just a brief introduction to the two main characters in the book, Luke and Sera, while they take a hiking trip. Even though it was really short I really liked the fact that we get to see inside both of their heads, learn a few things about their powers and their family status, and even though I am sure they have so much more to offer I really enjoyed their characters. I love stories about twins. I can't wait to read more.
Oh, by the way, this is free right now on Amazon so you might want to check it out.