[Karnax]

I have heard some mention of the star child and the sensei but I am not sure what they are exactly. I know the star child is something to do with the emperor, and that they are both connected with the warp. Also where can you find info on them (apart from here, obviously).

 

[fynn]

look for the old realm of chaos books, lost and the dammed, and slaves to darkness, they have all the info on the starchild and the sensi.

 

[Angel of Blood]

http://wh40k.lexicanum.com/wiki/Sensei
http://wh40k.lexicanum.com/wiki/Illuminati
http://wh40k.lexicanum.com/wiki/Star_Child
http://wh40k.lexicanum.com/wiki/Ordo_Hydra

Read through all of them, give you a good idea of it

 

[Karnax]

Cheers for that Angel of Blood. + rep