Learning of this betrayal, eight Space Marine Legions are dispatched to Isstvan.

At Isstvan III, Horus destroys all of the Space Marines who will not follow him into betrayal from the Emperor’s Children, World Eaters, and Death Guard.

Instead, he opens a rift into The Warp inside the Webway, letting daemons loose and ruining the Emperor’s project.

One of the Primarchs–one who is the most powerful psyker, Magnus the Red–learned about Horus’s treachery and tries to warn the Emperor via psychic communication.

The wound is terrible, and to save himself Horus made a pact with the powers of Chaos. Horus is wounded in battle at the Serpent Lodge on Davin.

The Emperor left the Crusade to return to Terra and work on a secret project.

As the Crusade was going well, the Emperor made one of the Primarchs, Horus Lupercal, the Warmaster, who would lead all the others in the Great Crusade.

The Primarchs led their Space Marine Legions in a Crusade to regain the parts of the Milky Way galaxy that had been lost during a previous era, the Age of Strife.

And from each of these he made a legion of the Space Marines, each one having the genetic traits of its Primarch.

The Emperor made 20 Primarchs, kind of demi-god-like beings who are a kind of super, super human.

If you enjoyed the show then please leave a positive review on Itunes. A list of the must reads can be found at the bottom of these show notes.Ġ0:00:00 – 00:11:58 – Intro, BL and FW talkĠ0-11:58 – 00:36:07 – Part 1: The many and varied ways in which we can consume Heresy material.Ġ0:36:07 – 01:21:09 – Part 2: The Horus Heresy Essential reading order. The second part involves a run through of the first 30 books and creates a list of ‘must reads’ while discussing the merits of all the others as well. The first part of the discussion covers the various mediums in which Heresy stories are released and possible pros and cons of these. In this Episode Greg is joined by Marcus to answer a question they have both seen asked a number of times – ‘What book should I read next?’

Horus heresy in order