Yes! That's them. They know more about basically everything than anyone else.

[Mostly because they're so old. Old as balls.]

Tampering with moon stones... Well, it did all originate from one of Murr's secret labs...

[Akira sounds so incredibly weary when he says Murr's name, like this isn't the first time complications have arisen because of him.]

He's been researching the Calamity for centuries, so while I don't think he remembers what was happening in that lab specifically he wasn't surprised he had fragments of the moon there.

[Typical Murr, really.]