Well, a lot of stuff happened, some of it pretty good, and as such I won't even waste your time and mine talking about Masuka and that stupid idiot intern. When Dexter sees the Four Horsemen Crafts Project, even he is thrown, although unbelievably, Mike Anderson the New Guy is the only one who can place the significance of the four horses, like, Quinn and Deb are one thing but how geeks like Masuka and Dexter wouldn't grasp it is completely beyond me. (I mean, forget the Bible – they're referenced in the X-Men universe.) Dexter is able to confirm that the kill wound, which by the way was made with some sort of old weapon, is a match with the one from the snake victim, and also finds a paper in the victim's eye with 1242 on it, prompting him to take another look at the first victim (or at least his intestines) and find a similar one reading 1237. Dexter figures that these are dates, and with the idea of a countdown (or -up) in play combined with the killer's references to the Book of Revelations, Batista speculates that the killer is announcing his belief that the world is going to end. Due to the combined efforts of Deb's team, in the end they know that Edward James Olmos was a professor named James Gellar, a Revelations expert who disappeared three years ago – after he was accused of stealing an ancient sword belonging to none other than John The Revelator. Also, Dexter deduces, from the difference in the fastidious crime-scene setups and the hack-and-slash way the victims were killed, that they're looking for two people.

Matthews informs LaGuerta that Deb will be the one to address the press about the Four Horsemen case, although LaGuerta of course tells Deb that the whole thing was her idea. Before the conference, LaGuerta gives Deb some advice to loosen up and not be so formal, which leads to Deb dropping an f-bomb on TV; predictably, LaGuerta gloats to herself how her wicked plan worked; just as predictably, it doesn't, as Matthews calls Deb in and tells her everyone loved how direct she was. We don't actually see LaGuerta sucking a lemon, but I'm pretty sure we can assume that happened.

Harrison comes down with appendicitis, and having had it as an adult I can only imagine the pain he must be in, so I won't begrudge him his wailing. Mos Def turns up to the hospital to support Dexter, and Deb thinks it's adorable that they're apparently friends now, which, of course, it is. When they're alone, Mos Def tells Dexter how his dad once used him to kill a man, with the guy's blood even splashing on him. This, as you might imagine, effed him up and contributed to him becoming a killer himself, but in prison, he had a moment of revelation and renounced his wicked ways. Dexter then steps away and prays for Harrison, and at this rate he and Mos Def are going to be the whole show soon, which I could definitely get behind.

Finally, a cute waitress takes a shine to Colin Hanks, and after a nice dinner the two of them end up in bed WITH GELLAR SURREPTITIOUSLY WATCHING THEM. Forget the Horsemen – THAT was scary, although to be honest, I'm starting to wonder if what we're seeing on screen is actually Gellar or just a figment of Colin Hanks's imagination. Still, that wouldn't account for the difference in MO that Dexter mentioned. Regardless, scarier still is when Colin Hanks awakes and finds Gellar having bound and gagged his new interest, and before you know it, the Miami Metro team is at the Coral Gables Botanical Garden finding an alpha/omega symbol. They find the poor girl strung up but still alive, but even though she frantically shakes her head for them not to approach, some idiot cop hits a tripwire that activates a mechanism that punctures the girl's jugular right in front of them and makes her look like a very dead angel. I still don't think it's the tightest writing, but I do have to hand it to the show for getting back to its Gothic, crazy-disturbing roots. On top of everything, they discover a swarm of locusts, and in the pandemonium that follows, Dexter notices Colin Hanks watching the whole scene with delighted fascination and makes him as one of the killers. I'm more excited than I expected to see how this one shapes up.