"...Have you?" Optimus' optics went wide, briefly making him look far more young than he had any right to be; completely derailed from the conversation at the revelation. He didn't...disbelieve the mech, but the idea of such terrors being confirmed was not something he truly wanted to consider.

"I hadn't heard of that reasoning before now. It was probably before my time." He made a face, unable to help conjuring his own mental images of those beasts lurking in the dark of the energon mines, snatching up the unwary... His tires twitched with his discomfort.


"...I certainly try to listen. Even to something as horrible as the idea of Sparkeaters in your mines."