Cersei turns her malice to Pycelle, she extracts that Margaery has been coming to him for moon tea which Cersei concludes she must have a secret lover. But this won‘t be enough evidence &she needs Tyrell‘s armies until Stannis is defeated
She accuses the Blue Bard of laying with Margaery, he denies, Qyburn tortures him until Cersei gets the story she wants.
She sets her wiles onto Osney to goad his false confession. But he has demands of his own.