Don't Wake The Sleeping Dragon (Book Two of the SPN New Legacy Series)
26 parts Complete This follows "A New Legacy", which follows "When Heaven Calls". I apparently like building on my prior stories. Mary-Joanne, adopted daughter of Sam and Dean (read "A New Legacy, it will make sense ) has grown up considerably since last we saw her, Sam and Dean have managed to keep her safe, taught her a few things but gave her her choices. Hunter, Woman of Letters or normal. They made it through most of her teenage years with no supernatural threats, that is until the night of both her prom and 17th bday. She's just left when Cas shows up and states that Crowley's rule in Hell is being threatened, the possible usurper is planning to make a large show of force with the Winchesters being the main attraction. What better way to rally demons behind them then to bring Sam and Dean to their knees. Sometimes it's best to let retired hunters stay retired.