I have an idea on what Eustass Kid stole from Big Mom’s territory and it will almost certainly be revealed in his upcoming fight against Big Mom.
To start, as most of you know Eustass Kid is based off of two real pirates. Those two being “Eustace the Monk” and the famous pirate captain William Kidd.
Now here is what is interesting. The real life pirate William Kidd had a father who was also a pirate. He was known as Captain John Kidd. I’m sure some of you know where this is going because this part of the theory isn’t anything new, but there is also of course a character named Captain John in One Piece.
I believe that Captain John is in fact Eustass Kid’s father. So what are the main important things we know about Captain John from One Piece?
- 1-He was a member of the Rocks Pirates
- 2-His epithet, just like Kid’s, is “Captain”. Captain John, Captain Kid. I honestly don’t think it’s a coincidence that these guys have the same epithet while also being inspired off of a real life father and son pair.
- 3-He is notable for collecting many treasures and riches. His cave of treasures is also what Buggy was looking for. Also that Luffy had one of Captain John’s treasures which was the bracelet that he wore after Thriller Bark that he ended up giving to Buggy.
So we know that Captain John was a member of the Rocks Pirates. Big Mom, who was also a member of the Rocks Pirates, would obviously know who he is. I think that if Kid’s dad actually is Captain John this will add a new dynamic/layer to his battle with Big Mom. Especially because the other connection that Kid has with Big Mom is that he at some point invaded her territory to “take something back” from her. What if what Kid came to take wasn’t a Poneglyph but instead one of his fathers long lost treasures that maybe he knew about since his childhood? I believe that after Captain John’s death, Big Mom probably took something important that Captain John viewed as a treasure. And I think this is what Kid went to take back from her territory.
This would also fit around the whole “Rocks Pirates theme” that Wano seems to be centered around. And it will also give a bit of a teaser/preview of Kid’s backstory which we will definitely get at some point after Wano.
*Theory by ReggieZoldyk21