To make this series a better value books 4 and 5 have been combined into one book Part One The Lost Years Part Two The Guardians Crown Book is clean and appropriate for ages 12 and up. The entire series has been leading up to this book. We have seen Gabe and his friends become adults, struggle with the dangers that go along with being a Guardian, and now we get to find out what finally happens. Will Gabe embrace his destiny and fulfill the prophecy, even if it could cost him his life? Or will he leave mankind to fight their own battles and seek out another chance at happiness?