The Shaman is the strongest magic user in the whole Archipelago. Stories are told how she was alive when the Great Upheaval split the world and it was thanks to her powers that anyone survived on what became the islands. Her response is to only laugh and ask the teller what kernel of truth is at the heart of that tale.
The witch will counsel with anyone who comes to her island, but she will not leave it. And she will help anyone who asks for it, but there is always a price to pay.