Bibliotheca Mystica de Dantalian (or Dantalian no Shoka) is a Light Novel series written by Gakuto Mikumo. It was adapted into manga by Chako Abeno and a Summer 2011 Anime series by Gainax.Huey, a young ex-pilot, inherited the old mansion of his deceased bibliomanic grandfather and with it the book collection stored in there. However, there was one condition: he also had to inherit the "Bibliotheca."When he inspects the mansion, Huey discovers a cellar that is filled with piles of books. In the middle of these books he comes across a black-dressed girl who is silently reading a book. She is called Dalian and has a big lock hanging before her. She herself is the gateway to the "Bibliotheca Mystica de Dantalian," which contains the prohibited "Phantom Books."
This series provides the following tropes:
Adventure Duo: Huey and Dalian, Hal and Flamberge, the Professor and Rasiel.
Altum Videtur: Libricide. You know what their job is. Also, the OP song.
Berserk Button: Dalian has plenty when it concerns books or food. Or Camilla making a joke about Dalian being Huey's "daughter".
Beethoven Was an Alien Spy: Episode 12 implies that the Biblioprincesses accompanied many famous historical figures (such as Dalian seen at the side of who is very likely Joan of Arc). It's also implied that the girl trapped in the Black Library is in fact the classical Pandora.
Big Eater: When she's not solving mysteries or obsessing over books, Dalian can be quite the eater.
Body Horror: Paula Dickinson constantly killing Leni Lentz and his lover over and over again to revive them using each of them as a sacrifice for the other. They become resistant end evolve into another being that is unable to be killed.
In episode 8, Armand is taken over by vines which engulf his whole body and burn him to death. He gets better though.
Department of Redundancy Department: Although it can actually not be redundant, since it could say that it's a supposed flying machine that actually works, the newspaper article Ilas discovers as a boy qualifies. It's entitled: A Flying-Machine That Flies.
Fangirl: The first chapter has Dalian gush over "Crown of the Dog Days ," which she insists is a romance novel and desires to read the last of the trilogy. Paula Dickinson has the same idea, but only acted on it through torturing the author and his lover countless times to get the ending of the book that she preferred.
Franchise Zombie: The Light Novel was in danger of becoming one, having already been completed at 8 volumes; however, as the author was preparing a 9th, the editors screwed that over last spring by requesting the series be extended. After months of disagreements, the 9th volume, along with its scheduled OVA, was finally scrapped.
Golem: One of these guards the Lillburn house. Huey and Dalian have to fight it off.
Gory Discretion Shot: When Paula Dickenson is killed, the viewers are shown the wall near Huey's and Dalian's cell, but we can clearly see her body being viciously ripped apart and blood spattering everywhere.
Paula Dickison's constant killing and reviving of Leni Lentz and his wife eventually made them immune and resisted death itself, allowing them to become one body and soul that ultimately destroys their captor.
The people who wanted to enthrall everyone with music and locked themselves into a soundproof room ended up still in the building when it fell, since they were the only ones who didn't hear the violinist's warning to get out.
All of episode 4 is pretty much an anime version of Misery condensed into a half hour. And somehow makes the original look tame in comparison.
From the same episode, a chapter title page (or something similar) in the book Dalian is reading says "Time Considered as a Helix of Semi-Precious Stones", the title of a short story by Samuel R. Delany.
Hal's staff greatly resembles Raising Heart. It even goes "Cartridge Load" when he stuffs a Phantom Book at one end to fuel his attack magic.
In episode 8, a stuffed bear appears in an auction catalog, whose design is noted to have become famous thanks to "a certain president."
A certain scene in episode 3 looks strikingly similiar to Gainax's earlier mini-series, Houkago No Pleiades.