Slade speaks through a series of speakers all around the room to try and fool anyone's superhearing.

"Tsk, tsk, Superman. I didn't give you permission to come out and play. It's not safe for you in your condition."

With that, the real Slade drops -no, propels himself down- from the ceiling and lands right behind Ruby. With lightning speed he brings his promethium sword to her throat, stopping just short of cutting her, while holding out his kryptonite dagger with his offhand.

"That last thing I want is for someone to get hurt."