Gav Thorpe's short story of the Horus Heresy is now available as an eBook.
It was released last year as an audio drama. Now you can read it on yoru iPad, Kindle, etc.
From The Black Library:
As Calth burns, the Battle Titans of the Fire Masters legion take to the streets of the city of Ithraca, ready to massacre the fleeing civilian population in the name of their new, dark masters. But the remaining loyalist engines of the Legio Praesagius - the True Messengers - still stand ready to defend the Imperium, even in the face of almost certain death. With the nearby Ultramarines forces scattered and lost, the people of Ithraca must fend for themselves as gigantic war machines unleash apocalyptic weaponry across the ravaged skyline...
You can order the ebook on the Black Library website.
I already bought this as I buy every Horus Heresy book. My iPad is filling up!
Nykona