While Sam checks out the lore on the computer, Dean visit the local watering hole where he meets a beautiful women and convinces where that he's a wealthy investment banker. The duo have a romp in the sack and the next day we find out not only is she pregnant with Dean's kid, but she's part of an ancient Amazon warrior race and her baby reaches adulthood in three days.
You can't help but notice that the strain of losing Bobby is really hitting the Winchesters. They not only lost a good friend, but their expert in all things occult. Sam gets an anthropology professor to help find out about the Amazons as Emma, Deans now teenage daughter, shows up outside his door. She says she wants to escape, but Dean realizes it's all a ruse and pulls a gun on her before she can strike, but can't pull the trigger. Sam shows up just in time and kills her.
Sam says it was no different that Dean killing his friend Amy, but as they drive away you can't help but feel bad for Dean who has just lost another family member. The question is still out there if Bobby is a ghost, but its looking more and more like he might be sticking around. I hope we find out soon.