An excellent story, and a saddened reader who hopes that this is not, truly, the end of your writing, but merely a vacation...
Training and Confrontations could definitely use a sequel, after all...
Or, if you are tired of writing about Harry & Company, but wish to explore other avenues within the same world, I've always enjoyed the character of Dr. Titus Pwy from your OLD BELIEVERS story, and would love to see further written about his exploits.
Happy Holidays