The Arkham Unhinged story arc has served as a side companion and hole-filler for the stories told by the videogame saga, mainly including Arkham Asylum and Arkham City (since Arkham Origins serves the same purposes, I see no need to fill blanks there). This third volume can be divided in two sections: first a group of stories regarding diferent characters and their vinculation with the events of the second game, and second (and the main event), the answer of the final destiny of the joker after the events of Arkham City.
As for the first section, the histories felt much more interesting that the ones presented in the previous volumes. They are told as perfect tie inns and, as you read them, you feel that the game experience and the comic are MEANT to be experience together. I love the way the "hangings" are presented, like: "is you want to know more about this story, play the videogame"....that encouraged me to play the game again (for the 5th time) in now the experience fell much more complete. For example, the scene of Blackmask's beating by Tygers at the beginning of the game made me much more sense after I read his story. Besides, the art is department made the right desition to stay put to the designs in the game.
As for the second section, regarding the fate of the Joker, I think is by far the best story presented in the Arkham Unhinged trilogy. For me, it gave a satisfying explanation and conclussion to the arc. This time the storytelling deviates from the style of previous stories and feeds up on the art style showed in the legendary comic "Arkham Asylum". This makes perfects sense, as the story in centered on the Joker figure and the madness surrounding him, which also add a darker tone for the Arkham series. I will not tell you more, just read it.
This is a very good purchase for any bat-fan and a MUST for the ones who palyed and enjoyed Arkham City.