The Bane Chronicles by Cassandra Clare, Sarah Rees Brennan & Maureen Johnson

Magnus Bane was one of the most fascinating characters in Cassandra Clare's The Mortal Instruments series and The Infernal Devices series.  A warlock who has lived for centuries, Magnus' life intertwines with the Downworlders -- vampires, werewolves, fairies, and warlocks -- and the Shadowhunters who hunt them.  His life has been full of adventure and romance.  Here are the stories that reveal yet more about him and his life.

The audio version of these short stories is wonderful.  Each story is narrated by a different British actor.  Anyone who has read either of Cassandra Clare's series should definitely check out this book.