various
Nine Loyal Primarchs

The nine loyal sons of the Emperor take to the fore in nine stories – one for each of them – which showcase a key tale from them from the Great Crusade or Horus Heresy.
The Horus Heresy
collection

It contains:
The Lion
Promethean Sun
Praetorian of Dorn
Ravenlord
Brotherhood of the Storm
Feat of Iron
Wolf King
Roboute Guilliman: Lord of Ultramar
Fear To Tread