2*, he appears in both "Angel Exterminatus" (Horus Heresy) and "Storm of Iron" (41st Millenium)

Ah, I've had that since release day and still haven't gotten around to reading it.

Both are great books, but in AE Fulgrim is such a whiny treacherous bitch. (no offense to Emperor's Children fans though)

I finished Angel Exterminatus a while ago and was planning on getting Storm of Iron in a few weeks.
:,c

Can't recommend that book highly enough

You were one of my favorites Forrix, especially when you told one or the other (Honsou or Kroger) to basically fuck off because they complimented you and you thought it was awkward. I thought that was funny.