A look at the comic references and Easter eggs from last night's episode.

Welcome back to Arrow Annotations, the Internet's number one Arrow column. If you want to know more about the comics that inspired the TV show and random factoids about the latest episode of Arrow, you've come to the right place. Past articles can be found here.

If you enjoy this column, be sure to check out Flash Facts, my new column on Arrow's sister show, The Flash. And feel free to follow me on Twitter at @TheOuthousers. Now onto the comic references!

Gregory Smith - This episode is directed by Gregory Smith, who's best known for his starring role as Ephram Brown in Everwood. Smith has also appeared in The Patriot and the TV series Rookie Blue.

Lazarus Pits - This is the second episode that has shown Ra's al Ghul emerging from a pool/bath. In the comics, Ra's is able to extend his life via the use of Lazarus Pits, a natural underground pool containing a unique blend of primordial chemicals that can restore youth and even resurrect the dead (but at the cost of temporary to permanent insanity). Given that Ra's has referenced his old age several times on the show, it's pretty clear that the show is looking to incorporate the Lazarus Pits into the Arrowverse.

General Shrieve - In case you missed it, we discussed General Shrieve's comic counterpart last week.

Heir to the Demon - Ra's offers to make Oliver his heir and become the "next Ra's al Ghul". Ra's search for a suitable heir is somewhat of a running theme in the comics. Ra's has offered both Batman and Bane control over the League of Assassins after determining them both to be suitable successors. Ra's also has a history of deciding that his own children weren't worthy heirs. Ra's declared his son Dusan al Ghul to be an unsuitable heir as he was an albino, and he only declares Nyssa to be a worthy successor after manipulating her into killing him.

Another quiet week. Seems like the perfect time for an extended break. We'll see you all next month! Thanks for reading!