Board Thread:Warhammer 40k Novels/@comment-4821405-20130129220840/@comment-109.151.161.248-20130219180059

Eidolon's situation is also explained in 'Angel exterminatus'. His head was rescued by Fabius bile on the orders of Fulgrim himself. whether or not it was purely by the skill of fabius or if he has help from the warp is unclear. but his head was re-attached.

As for Kaesoron, he killed Santar but was just badly mangled, not killed.

Strangely i wonder if this was all intentional by BL seeing as two primarchs were also beheaded!?!?