The original poster was Devildog. Sorry I didn’t catch it before now and missed your other post.
Saw this on Facebook. Shout out to the original poster, sorry I don’t remember where I saw it.
Check out Fantastic Four #360 with the Venom Island stuff coming up and Absolute Carnage going down now. First appearance of the Symbiote named Dreadface (not a winner on the forum contest) and attaches to Ben Grimm (The Thing) and Johnny Storm (The Human Torch). Codex left over, perhaps, but also takes place on an island where a symbiote had landed.