Glad to report the dimensions should hold together, a thorough search showed no other thrill-power to be found in the envelope…
I don’t have the other books in the series (yet…), but I can (ahem) shine… a light on the following:
Books of Invasions 1: Shiny (Sep 2006, 2nd printing)
Books of Invasions 2: Shiny (Jul 2006, 1st printing)
Books of Invasions 3: Shiny (Jul 2007, 1st printing)
The Wanderer: Matt (Apr 2013, 2nd printing)
Book of Scars: Shiny (Nov 2013, 1st printing)
Brutania 4: Shiny (Aug 2018, 1st printing)
So it’s flipped back and forth between shiny and matt, I’m guessing this one is shiny by design. The question is what format will Dragontamer take…
As you say all great books, I probably lean towards preferring the shiny format. And to get a spine reference back in, they all feature Slaine artwork on the spine except Brutania 4 (and presumably 1-3).