Nightwing took the first of his revenge by bursting in on Deathstroke and Rose's training session, revealing to the latter that the kryptonite that Deathstroke had implanted in place of her missing eye was radioactive and deadly to humans as well as to Kryptonians (as revealed by Luthor's old possession of a kryptonite ring that had forced him to transfer his brain to a cloned body). Angered, Slade went after Nightwing with a grenade, only to have Rose try to stop him. Amid the smoke of the resulting explosion, Rose fled, telling her father that she hated him. Nightwing disappeared as well, but not before leaving a note for Slade warning him that he would be back to make him pay for Blüdhaven.