Enter Jonah. He approaches Dahlia at her friend's party and offers her $2k if she'll find who stole the Bejeweled Spear of Infinite Piercing from him in the online game Kingdom of Zoth. It's a weird request, but Dahlia needs the money. When Jonah turns up dead, Dahlia's offered even more money by his parents to arrange a virtual service in the game. Soon the lines of game and reality blur as the killer used a replica spear to kill Jonah and she's determined to find out who and why.
Max Wirestone's novel came out in October 2015, so you'll find it in stores selling Redhook's titles and online now.