Start here
Caitlyn of Runda
Caitlyn of Runda is the best place to begin: loyalty, betrayal, survival, and the first moral fracture of the realm.
Books
Choose your path into Krovaris
Start with Caitlyn of Runda, continue with Tisha: Shadow Dancer, or move ten years forward with The Shadows Call His Name.
See reading order 
Latest release
Tisha: Shadow Dancer
Tisha: Shadow Dancer follows a path of conspiracy, manipulation, and psychological fracture inside the same brutal world.
Ten years later
The Shadows Call His Name
The Shadows Call His Name moves Krovaris ten years forward, where old damage returns under a different kind of danger.