Written in My Own Heart's Blood: A Novel (Outlander Book - Kindle edition by Diana Gabaldon. This is the book I am currently reading on my kindle as I am also watching the Outlander series on Starz. An absolutely fabulous book series!
The Red Pyramid (Kane Chronicles, by Rick Riordan. Okay, let's be honest, this isn't Percy Jackson. But that's fine, because it's the Kane kids and they have their own problems to deal with. Great introduction to Egyptian mythology and a good story.