The Duchannes and Ravenwood family trees are so close together, it's hard to tell whose branches are whose. But we'll try to clear it up as much as we can.
Macon and Aunt Delphine are half-siblings. Macon's father, Silas, had Delphine with Emmaline Duchannes, hence the Duchannes family name. They had three girls of their own: Reece, Ridley, and Ryan, Lena's cousins. Oh, and that snake Larkin, too. Ridley isn't much better than him—those traitors have their own pages.
In any case, Delphine's sister, Sara, is the horrible Sarafine. We're assuming Emmaline is Lena's beloved Gramma, whom she never calls by name. Macon's mother is Arelia, who is still alive and helps out during the Sanguinis Circle. And that's the way they became the Caster Bunch. Got it? If not, check out the family tree in the book. It'll all make sense.
So now we know how each family member is related. But what is it that makes them so special? You'll soon see that each Caster has his or her own powers.
All the adults work together to Bind Ravenwood, closing it off completely. They're trying to protect it from Sarafine and her evil powers, but by doing so, they unwittingly create a prison for Lena. And they might just be doing more harm than good.
Okay, the adults are covered. Now on to the younger generation. We only get small glimpses into the lives and powers of Lena's other cousins, Reece and Ryan.
These cousins don't have too much bearing on the plot. They do serve to deepen the rich magical world that Garcia and Stohl have created, though, and we look forward to seeing what roles they will play in the future struggles between Dark and Light.
Moving on to the other magical residents of Ravenwood who aren't part of the family tree—they're like little shrubs nearby.
We have no idea if Kitchen, the Alice to the Ravenwood/Duchannes Brady Bunch, has a corporeal form (i.e., a body) or not. At first we thought Macon just had an impersonal way of referring to his household staff, but if you think about it, we never actually see them during the course of the book. And, man, are they fast, whipping up a gourmet meal in just a matter of minutes.
We don't even want to waste our breath on this guy, but Hunting (Macon's brother), is the last of the bunch. His name really says it all: he's more animal than human, a bloodthirsty Incubus who would kill his own brother. And that's exactly what he does.
Hunting is clearly more brawns than brain. By killing Macon, he renders Sarafine's ultimate plan completely moot. Sarafine is using Macon as a tool to manipulate Lena to go Dark—if she goes Dark, Macon will live. But once Hunting kills Macon, that bargaining chip is off the table.
Lena, of course, doesn't know that Macon is dead. She's too busy trying to save herself and resurrect Ethan to notice until after the smoke clears. But if she had been aware of Macon's death, she probably would have gone Light, wiping Sarafine, Hunting, Larkin, and Ridley off the map. Think ahead next time, Hunting.