It turned out that the sea witches were indeed ahead of the rest of the world when it came to certain things.
They were researchers and they researched all kinds of different things.
That meant that there were all kinds of things that they actually kept hidden.
This tonic that they talked about was one of those things and it certainly wasn't a normal thing.
It turned out that the sea witches were quite insightful and had picked up on something that was quite amazing.
The body of any living being had to adapt if they wanted to stay alive. Which was why when they were ill, they would develop immunity to whatever had caused them to fall ill.
But for those that had never been ill before, they would be missing something that would allow them to develop immunity.
As such, they figured that there might be a way to transfer this immunity from one person to another.
