Everything Castrovel?

[John Lynch 106]

I was wondering what information is available on this planet (either rules system?).

I have:
Starfinder Core Rulebook
Starfinder AP #2
Starfinder Pact Worlds
Distant Worlds
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Am I missing anything? Does Elves of Golarion have anything? Any other book out there?

[Ventnor]

Both of the Alien Archives released contain the stats and info on a bunch of creatures that call Castrovel's wilderness home.

[The Drunken Dragon]

People of the Stars is also a reference with some brief material, though some of it might be redundant and/or out of date at this point.