You said to not travel to Shadesmar on Sel. Is this a consequence of Odium Splintering Aona and Skai?
It is indirectly related to the splintering. There is a clue to why it is dangerous in Way of Kings.
If you are viewing this on github.io, you can see that this site is open source. Please do not try to improve this page. It is auto-generated by a python script. If you have suggestions for improvements, please start a discussion on the github repo or the Discord.