"You can't avenge him from the grave."
In King Renly Baratheon's tent in the Stormlands, the young king tells Lady Catelyn Stark that he and her son Robb would make natural allies. She begs him not to go to war with his brother Stannis, but Renly won't listen. As he asks Catelyn to take his terms to Robb, a shadowy cloud billows into the room. It coalesces into the shape of a man and plunges a dark blade through the king's chest; Lady Brienne of Tarth looks on screaming. Before anyone can react, the creature disappears and Renly's guards rush into the tent to attack Brienne, assuming she's the killer. She makes short work of the men and then collapses in tears across Renly's body. With no other choice, Brienne and Cat flee into the night.
The king's death throws the camp into disarray, and as Stannis' ships appear on the horizon, Littlefinger counsels Margaery and Loras Tyrell to flee while they still can. Loras agrees to postpone his revenge, and after he leaves, Margaery tells Littlefinger: "I want to be the queen."