"Hmm. The same reason censorship exists, or those who win a war write the history of it as they see fit," Megatron said slowly, hearing Orion thump down on the ground and while he didn't need the extra light, Orion offering it was what he actually wanted.

Because it was so very much Orion.

"And everybody else has to dig to find and and decide what to do with the information." Grinning as he let go of the ladder and fell the last few meters, Megatron turned around, dusted his hands off, and squeezed Orion's shoulder.

"Now comes the real bit of climbing, Orion. Let's see if your altmode's specs can help you here like they probably don't in the library," Megatron said, not at all concerned over having more or less insulted his lover, and walked over to the edge of the cliff they stood on.

The darkness was, of course, absolute beyond Orion's headlights, but Megatron cracked a lightrod and, with a quirked optic ridge, tossed it out into the space. The flickering light of the falling rod lit up what seemed to be a half-collapsed chamber, parts of floors sticking out into the empty central cavity.

The style of this part was probably no older than early Golden Age, so this wasn't actually what they were here to look at.

Then the lightrod fell down into the abyss below.