Dexter tells Harry that Jordan is like him and needs a routine. Deb created a file of all of Jordan's real estate holding and Dexter figures Lumen has to be at one of those places. Harry chastises him for making another assumption (I feel like the audience has been forced to make assumptions all season), but Dex says that's all he has to go on. He says that Lumen accepts him for who he is and is someone he could share his life with and thusly he refuses to let her die. Then, he opens the door to leave... and finds Harrison, Cody, Astor, Sonja and the kids' grandparents. "Surprise!" they all say. It had been Astor's idea to surprise Dexter and have Harrison's birthday party in Miami. Dex is all squirrelly and weird. Astor asks him to come to breakfast and he says that he has a work thing. Sonja, who apparently has taken on the role of ambassador for the older kids in addition to her non-stop duties as Harrison's caretaker (I guess I'll have to ASSUME why she has no other life at all), says that the kids have something to ask him. By this point, Dexter is super ready to get out the door, but Sonja convinces him to listen to their request. They ask him if they can stay with him for the summer. He says yes. They hug him and tell him that they've missed him. Even in the midst of his urge to get out of there and save Lumen, he smiles and says that he's missed them too.