Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you: No adverts like this in the forums anymore. Times and dates in your local timezone. Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance. Email notifications for threads you want to watch closely. Being a part of the oldest wargaming community on the net. If you are already a member then feel free to login now.

Are there any books post-heresy with the Emperor's Children in it?

Chaos Child, the third part of the Inquisitor War trilogy, has Emperors Children in it, tentacles and all.

Fabius Bile is a character in Black Tide, one of the Blood Angels books, I haven't read this though.

Mandragore Carrion is mentioned in Xenos, the first book of Eisenhorn Trilogy.

Sons of Dorn has Noise Marines as the antagonists, supported by Slanneshi worshiping cultists/military.