R'lyeh stood on bluff over looking the legions of chaos. Thousand sons,emperor's children,world eaters,death guard and many more marched under the war banner of Tearogoth in force. The largest gathering of the traitor marines short of a black crusade. After them the countless forces of the traitor guardsmen. Thousand of tanks and armored vehicles rolled on as even more numerous the guardsmen themselves as they marched alongside.
The initial invasion was quick as PDF and guardsmen's were unprepared. Most who were not taken as sacrifices or slave laid nailed to banners, held aloft by abhumans. their screams making a beautiful Symphony of pain, sure to please the dark gods. 
"Lord R'lyeh...visitors" A deep voice said behind him. R'lyeh turned. Behind him stood his favored champion Kuzan and his Rubricae blocking several traitors and their prisoners.
"Come forth." He commanded, his voice commanding and filled with the weight of the ages. Slowly the Rubricae stepped aside allowing the humans through. Slowly they come forward as the prodded their prisoners with bayonets. The prisoners were guardsmen captured in the initial attack. At their head stood a female captain of the PDF. "My lord..." Said one of the guards as he bowed. " the volunteers you requested. " he said as the woman spit at R'lyeh direction. With a chuckle R'lyeh opened his arms in a mock welcome.
"Such kindness from the corpses emperor.... Long has it been since I had tbe pleasure." He said as he stepped close. Softly the prisoners begin to recite prayers. "Yes say prayers...you will soon learn their uselessness...take them to the ritual pit." He said