Sons of R’lyeh – CSM Concept

So this is an idea for a CSM Chapter that I have been toying with for awhile. I love the H.P Lovecraft Cthulhu Mythos, and have read just about everything Lovecraft has written. I wanted to do something a little different than the normal tyranid cthulhu guys. The Sons of R'lyeh Background: It is believed by Imperial Inquisitors that the Sons of R'lyeh Chapter are an off shoot of the