What skill check would reveal info about a kraken?

I’m writing a campaign involving a kraken using deep scions and sea spawns to take over a town with the intent of gaining enough influence and followers to become/kill a god. I’m wondering what type of skill would make sense to recall information one might have heard about krakens and the related creature.

I was thinking religion at first because the kraken is basically making a cult, but this would be a recently new development and the kraken isn’t mentioned elsewhere in my settings religious texts, also they are monstrosities which makes it even less religious.

I was also thinking nature because the kraken is in a natural body of water and is a creature, but that doesn’t make sense for scions or sea spawn because they used to be humanoids.

Some people use History for general memorization but that is more for memorization specifically about historical events

What skill do you think I should use!

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