(Spoilers All) Varys, his little birds, and Kevan Lannister Something I always wondered about is what is the point of Varys summoning all of his little birds with knives when Kevan dies?  Why not leave him there so Cersei thinks Tyrion the Tyrells did it?  I say 'leave him there' because the only reason I could think of for all of those little birds to appear with knives would be to cut him up in order to more easily hide the body and make it look like he vanished. Though I feel like leaving him there would drive Cersei even more insane, causing more instability, which is just what Varys wants in KL.  

TL;DR Why did Varys summon his little birds with knives after the death of Kevan?