Nick Kyme
Fireborn

The world of Sepulchre IV stands on the brink of destruction. From the stars the Red Rage decends, intent on murder and massacre, and only the elite Firedrakes of the Salamanders stand against them.
Warhammer 40k
novel

Also in:
Hammer And Bolter: Year Two
The Adeptus Astartes Audio Collection
Tome of Fire