http://blogcritics.org/archives/2009/... ( )

The fourth book in the Horus Heresy series makes a mistake by starting well before the end of the third book. This mistake is soon overcome by tense and gripping action as a few loyalists strive to warn of the treachery unfolding among their brethren.

A worthy addition to the series. ( )

The fourth book in the Horus Heresy series is a great addition to the Black Library’s ongoing saga. And not since the first book have I been so absorbed by the characters and intricacies of the Heresy. To those uninitiated to the Warhammer 40,000 world, the name Eisenstein means a great deal. And to fully appreciate this chapter one should have read, or at least be familiar with, the other three volumes. Eisenstein just won't have the same "punch" if you just jump into the story at this juncture. Nevertheless, Eisenstein is full of some great action, suspense and writing. I was truly impressed that Mr. Swallow wrote this novel. Especially considering that I did not enjoy his previous foray into the 40K universe with the “ho-hum” Faith & Fire. Therefore, I anxiously await the next chapter in the ongoing Heresy. ( )