The Far Off Unhappy Webnovel, the Lands Lost and the related characters should all be considered to be in public domain. If you want to, you can start writing about them right away and self-publish them wherever you want. Feel free to credit me/ this website so others can find more content, but you don’t have to.
If you have any questions, either send an email to the aforementioned email-address, or @ me in the Discord at: the discord is full