I'm sorry for the wait and that this isn't a chapter. I've been having the worst writer's block of my career. Because of this, I will have to stop writing fan fiction and focus on my actual work.
For a recommendation, check out The Marble King on AO3. It's a historic AU during the Ottoman siege of Constantinople. It places all the Camp Half-Blood characters in the period. Constantinople was the center of Western civilization instead of New York, and Percy was from there. Annabeth is from Sweden because her cousin Magnus Chase is Norse. Fair warning: many characters' names and names of countries are changed to match their respective languages. Jason is "Iason," Sally is "Sarah," et cetera, et cetera. Check it out!