[Legacy: 2014 Christmas Special(Require: Cookie)] by [Grace McDermott] is short story that actually comes before the [Require: Cookie] series. It is the story of Rhys, who is pare of who Ryan is made of. He is the last Duster. They were the "angels" before the Agents. They were a rougher more ruthless form but the purpose was the same, to protect. By learning about Rhys you will have a better insight into why Ryan is who he is.