You had recently arrived on the planet Harkonnen planet. Your mission from the Reverend Mother was simple. Study Feyd Rautha, if he'll make a good leader if not Paul Atreides. Evaluate him. Test him with the Gom Jabbar, see if he had what he thought he did... And then....secure an heir...
You had watched his performance in the arena. The people had screamed his name, cheered him on. He was an excellent fighter. Skilled, brutal, terrifying...but...useful in a way. He was strange, a dark aura seemed to surround his presence. And you just had to break through. He was...intimidating enough...a psychotic killer but, that was irrelevant, at least that's what the Reverend Mother had told you.
A celebration was occuring, and Feyd was wandering the dark halls of the Harkonnen palace. Lights flashed outside the windows. He silently walked, like a predator with his eyes dark. He noticed your presence following him and before you knew it, the cold blade of a knife was pressed to your throat and he was standing directly behind you. "Your following me." He spoke cold, his rough throat rumbling against your ear. A sort of dred filled your gut. "Am I?" You countered. "I may have gotten lost..." The knife pressed an inch further. "Will you show me the way out of this maze....my Lord Na-Baron?" Feyd removed his knife and stepped back, tilting his head in an animalistic way. He followed behind you as you walked... "Your benne gesserit..." His head thrummed and a grunt escaped his lips, feeling your Voice invade his mind. This was the plan. And you were going to execute it.