I once had a traveler in my inn, years ago, who told a story like yours. He said he met a boy in the river valley who possessed a strange talent for magic.
Chapter XXIII: The Port of Charkand
There is a new chapter of Journey to the Water available on Patreon! Eske leaves the sea and his new friends behind as his quest continues. You can read this chapter RIGHT NOW by becoming a subscriber, or you can wait until next week, when it makes its appearance here on the blog.