The third volume of the Arkham Unhinged series is by far the best. It gives you the next 5 stories in the series and the Endgame epilogue one shot. This is the strongest collection of stories by far and well worth a read.
1. Clown Court - Two-Face puts Joker on trial. Penguin, Riddler, Mr Sickle, Carpenter, Poison Ivy, Deadshot, Ratcatcher, Black Mask, Mad Hatter, Bane, Ventriloquist and Zsasz make up the jury of his peers, each with their own story of how Joker has offended them in this mockery of justice. Harley serves as Joker’s defence. It’s a bit like a spoof Batman The Animated Series episode: Trial where Joker and the Arkham inmates put Batman on trial but for Joker. It’s a lot of fun and even sees Batman and Joker team up. Definitely Derek Fridolf’s finest work.
2. Repentance - an exploration of Azrael, a mysterious minor character in the game. Aaron Cash reveals Azrael’s identity and origin as Bane and other Arkham criminals siege the church where Cash, Vicki Vale, Warden Sharp and the Riddler are hiding. It’s a good fun story
3. Eviction Notice - while presumably no longer canon since Arkham Origins, I really liked this Black Mask story. It takes the character who had a few seconds cameo in the game and crafts a compelling story for him covering his origin, first encounter with Batman, entry into Arkham City, encounters with Joker and Penguin, a team up with Firefly, and the resultant battle with the Batfamily that leads to his cameo in the game.
4. Beloved - the Arkhamverse’s version of Batman and Ra’s al Ghul’s first meeting. It’s no Demon’s Quest but I still really enjoyed it. The focus is on establishing Bruce’s relationship with Talia and it does the job.
5. Uninvited Guests - Strange’s soldiers attack Wayne Manor but are fought off by Nightwing and Robin. It was nice to see Nightwing for once but otherwise this was a bit naff. Just forgettable.
6. Endgame - the epilogue to the game. SPOILERS FOR ARKHAM CITY. Joker leaves Batman a message from beyond the grave. He offers one hundred million dollars to anyone who returns his body to Harley Quinn as a distraction while revealing to Batman there are bombs around Arkham City ready to blow in one hour that will release every inmate into the city. Batman’s only clue is a secret Joker hid in Arkham Asylum. Batman recalls a flippant comment to the Joker in solitary confinement that led to him writing a secret diary Batman has to find. There are some gaps in the ending that the Arkham Knight prequel series will fill in but overall this is a fantastic epilogue to the Joker’s death, much better than the Harley’s Revenge DLC that the game actually offers.
Between Clown Court and Endgame, this book is definitely worth your time, particularly for Joker fans.