Basically, there’s the creation of Airtha-Eyrassa and the first three ages and the first two Sunderings before the published short stories/flash fiction takes place.
The fiction which have been published (and which I basically now regard as canon *gets giddy from using the word “canon” in reference to own work*) takes place in the following order (please note some of these are only available to Patrons):
“Shadows” and “Dust Red As Blood” technically takes place during the first part of The Ruon Chronicles, but was written more as exercises. You won’t, therefore, see these in the books word for word. And they don’t give away too much, methinks.
“The Oath” and “Box of Secrets” takes place 35 years before “Grove of Graves”, btw. And about 150 years before Charms…
At the moment my timeline is on Scapple, but, I am afraid, it is absolute gibberish to anyone else trying to read it! XD