Xiao Yuan mumbled to himself, "My father...", and then threw his head back in a laugh.
Peng Rui remained on the floor, her fingernails digging into the polished wood. "Don't believe them your Royal Highness, they're just trying to poison you against me! Against his Majesty." She snarled up at Chu Yun. "Why would I kill my own child?"
Chu Yun smiled. "Because you can have others," his eyes flickered to Xiao Zai. "I'm sure the King reminded you of that, when he asked this little thing of you. Why would you care? I'm sure it stung, to see a beta become the Prince's First Wife, but the King promised to make it up to you, didn't he?"
She bared her teeth at him. The truth was that Chu Yun needed her to admit it, he was making conjectures, but he didn't have solid evidence.
He needed her to come out and admit to it in front of Xiao Yuan -- wipe away any doubt.