The shooting death in Central Park of a boy from a rich family sends Castle and Beckett into the world of New York private academies, where circles of friends prove to be almost more conniving, evasive, and mysterious than they can fathom.
Castle: Reading the paper? You are going to lose all of your wired teen hyper texting nano gizmo street cred.
Alexis: I'm a rebel. I like it old school.
Castle: Who was murdered and... was it gruesome?
Beckett: So why the burial at sea?
Castle: The Vikings believed that if you wanted to reach Valhalla you needed a vessel.
Beckett: Gun-toting Viking? That's your theory?
Castle: No no no, they also launched their dead with a sacrificial woman... and some booze... and a good horse.
Castle: Did you know in the original Greek, 'tragedy' literally means 'goat song'? I know, doesn't make any sense to me either, but whatever that first story was, I can't help but think, bad things must have happened to that goat…
Capt. Montgomery: You gotta be kidding me. I already told the brass that we got the guy.
Castle: I can see how that would be a little awkward.
Capt. Montgomery: The Mayor even called to thank me... he's in for the Knicks game, by the way.
Beckett: Whoever staged Max's suicide wanted us to believe that he killed himself out of guilt over shooting Donny, which makes me think Max didn't kill Donny after all.
Castle: The other kids corroborated Romy's story that Max pulled the trigger.
Beckett: I didn't say he didn't shoot him. I said he didn't kill him.
Castle: Is that a Zen kōan one hand clapping thing?
Castle's ring tone is from the start of J.S. Bach's "Toccata & Fugue in D minor".
We learn that Beckett went to a public school.
Castle is introduced as a "consultant" for the first time.
Castle's screensaver says 'You Should Be Writing'.
Castle mentions in passing the trappings of a Viking funeral including a good horse, booze and a sacrificial woman. Famed children's author Roald Dahl was given a Viking funeral upon his death in 1990, where he was buried with his snooker cues, chocolate, Burgundy wine, HB pencils and a power saw.