This is a back story to the main Gideon Quinn adventures, giving us a bit more of Gideon’s past than is revealed to us in the main books.
In this book we’re taken back to Gideon’s time in the war when Gideon takes a couple of his soldiers to go behind enemy lines to steal some secret documents. We also get to know how Gideon ends up with all the scars.
Only a short novella kind of thing, but still a good little episode that gives us a bit more history to Gideon’s character.
I would suggest reading this after Soldier of Fortune, and then follow it up with The Longest Shard, which i have jumped straight into after finishing this book.