Existence (Existence Trilogy, #1) - Abbi Glines I was excited to start this since its from Abbi Glines & it was free through iBooks. I wasn't initially sure if I was going to like it, it started out having "The Sixth Sense" feel to it. It ended up having a great storyline that kept me hooked. There were some parts that were obviously predictable but I still see myself continuing this series.