The Caster Chronicles, by Kami Garcia and Margaret Stohl, is a young adult fantasy series that began in 2009 and concluded in 2012, with four books and one short story.The book introduces Ethan Wate, a teenage boy living in Gaitlin, a small town in the southern United States. Ethan cannot wait to graduate high school and get out of what he believes to be a boring small town where nothing ever happens. Then he meets Lena.Lena Duchannes is a beautiful new girl with a dark secret. She is a member of a family of Casters, short for Spellcasters. Each child born into her family has special powers. Lena's family is unique among the Casters because they are cursed. Every girl in their family, on her sixteenth birthday, is Claimed by either Light or Dark. Lena's cousin and former best friend, Ridley, went Dark recently, and she is terrified that the same thing is going to happen to her.She and Ethan also face the challenge of the impossibility of the relationship between a Mortal and a Caster. For the Mortal, every touch or kiss is an electric shock, and to "be together physically" would result in his death.
Curse: In Lena's family, Caster girls are Claimed by Light or Dark on their sixteenth birthdays. They have no choice, unlike most other Casters. This is because Lena's ancestor tried to revive her dead lover.
Macon, being an Incubus, is of the Dark, but chose to side with the Light.
Also, as John Breed stated, there is Light in the Dark and Dark in the Light. So, it could be assumed that Genevieve, Ridley and Macon could do good things and help other because they were not completely evil.
Dramatic Entrance: In Beautiful Creatures, Macon blasts open the doors to the gymnasium to interrupt Lena's trial, striding in with Marion on his arm and not a single drop of water on him despite the raging storm.
Macon: I'm so sorry we are late. The weather is just treacherous out there tonight.
Love Dodecahedron: In Beautiful Darkness. Ethan is in love with Lena, who he believes left him for John Breed, and is begining to be attracted to Olivia. Link is also attracted to Olivia, but at the same time he's still pining for Ridley. Ridley and John are often seen together, so subtext could lead to interpretation of them as a couple. Lila Jane Evers' first love was Macon Ravenwood, but he had to leave her because he was afraid of hurting her, so she met Ethan's father. She's still enough in love with Macon to save him from dying. He never stopped loving her.
Noodle Incident: Since the first book, Link and Amma had been quarrelling over something Link did in Ethan's basement when he was a kid, and Ethan never knew what it was, because Link refuses to tell anyone what bad thing he had done. In the end, you learn that he had put on a union soldier's uniform.
Not So Different: Like Lena, Sarafine always wanted to be Light. Though in the end it did not turn out as Sarafine wanted.
Our Vampires Are Different: A Blood Incubus is basically the same thing as a vampire. A normal Incubus is similar, but it feeds off dreams and emotions instead of blood. Beautiful Darkness is very unclear about what a Succubus is, aside from being a female Incubus.
Out with a Bang: What happens to any Mortal who has — or tries to have — sex with a Caster or Incubus. It's doubtful how far anyone would actually get; just a heavy make-out session with Lena nearly kills Ethan in Beautiful Creatures. He would have died, had it not been for Ryan's intervention.
Sadistic Choice: One is offered to Lena near the climax of the first book. Choose the Light, and every Dark Caster in the family dies, never to harm anyone ever again — but Macon will die as well, and Lena will never be able to have a physical relationship with Ethan. Choose the Dark, and every Light Caster in the family dies — but Macon will survive, and Lena will be given the means to be together with Ethan physically and emotionally.
Signature Item Clue: In Beautiful Darkness, Ethan finds Lena's iconic and personalized charm necklace on a beach near the Great Barrier, and knows something must have happened to her and that she passed by that spot.
Stalker Without A Crush: Macon to Ethan in the first book. He was sneaking into Ethan's room while Ethan slept to eat Ethan's dreams in order to "replenish" himself. Ethan is understandably freaked out when he realizes.
Tragic Mistake: Genevieve's attempt to resurrect her beloved cursed her and her family for generations to come.
This Looks Like a Job for Aquaman / What Kind of Lame Power Is Heart, Anyway?: The main character, Ethan Wate, is a Wayward - a mortal whose destiny is essentially intertwined with that of a specific Caster. Waywards are also essentially a guide or compass for their Caster, and instinctively know where they need to go and what they need to do, especially when Casters are about as lost as the next person in the room. Needless to say, this only ever comes in handy when all other options have been exhausted. Comes with plenty of Lampshade Hanging that explicitly references Aquaman and his usually useless powers.
Trailers Always Lie: There was one shot of Ridley screaming◊ in what looks like anger in the trailer (at 1:52, after Lena snarls "I want you outta here!"). Thing is, what actually happens is that Lena tells her to get out, and then Ridley screams in anger that she's so sick of everyone treating Lena like she's special, to which Lena coldly replies "I said, get away from my boyfriend, you witch." Ridley's face changes to surprise and fear, and then she goes flying.