if you see someone without a smile~~~~~~~~~~~~~~~~~~~~~~I would recommend Marianne Curley's "Guardians of Time" series. It consists of "The Named", "The Dark", and "The Key", and all three are fantastic. It's about this secret organization that exists to protect history because the sister of its creator is bent on changing the past to make it so she rules in the present. It's incredible...
Plus, there's this character named Arkarian who's 600 but doesn't age physically, and his hair his blue, his eyes are purple, and he's... so amazing. He's pretty much my favorite character of all time.
~~~~~~~~~~~~~~~~~~~~~~give them yours :3