Talk:???/Mysterious Island (Outer Sea)/@comment-25707465-20200717201551

Re tested. Can't access it as soon as it's accessible.

Edit1: Found the solution.

First you have to access the other mysterious island.

It's then pretty safe to assume that the stone monument talked about on said island is the one you see here, since it matches.

Edit2: You don't get the full text on the tombstone at first.

You only get it when you dealt with the postgame zone.