In this novella we get to re-read some of the scenes that played a major role in the previous five instalments, this time from Dex's pov. We even get a new scene leading to the next book and a few new ones right from his past, and oh-boy if those make clarity over Dex being so messed up... I would strongly suggest you to pick every previous instalment (including Pippa's novella) before reading "The Dex-Files", or the events not only won't make much sense to you, but I'm afraid they won't have the desired effect and you could get spoiled.
Getting inside Dex's head is quite an experience, one I would gladly repeat over and over again! Dex has always been a dark, complex character and for that, even more captivating. However, despite his personality showing us a different side (one I can't help being crazy about), here you can also see how terribly loveable he is. I wouldn't have thought possible to love him more, but here I am, completely and irrevocably addicted to Declan Foray!