Cipher of Bones: The Past Was Never Buried (The Legacy Protocol Book 2)

How does one follow a trail and find out what is at the end of that trail when the clues are centuries old? That is the big question in this new installment involving Cass and Luke. Who is leading/controlling them and why? Can they follow the clues and save people in time or will more people die?
You will have to read this book to find out.