David M. Booher 
All-New Firefly #6 [PDF ebook] 

The crew returns, but with only pure devastation to greet them, along with their own internal conflicts and distrust to deal with, especially as Jayne’s character is obscured by a relationship to someone special. With only half the crew on the hunt for a potential target, Serenity ends up in dire straits, to the mortal peril of everyone on board