Megatron might have answered and elaborated 'which part' it was, but, even smirking in amusement over Orion not moving while he went exploring, but Orion's sudden confusion and his voice trailing away pushed any such thoughts away.

"What is it? What'd you find?"

He strode back to stand beside Orion where he knelt on the floor, arms crossed over his chestplating and optics narrowed. This sounded like something that he definitely wanted to hear.