@pbtoejam05 The series is called Cinder Spires. The first book is The Aeronaut’s Windlass, which is fully written and in the process of being published (no date given last time I checked).
I know nothing more because knowing it's a steampunk series from Jim Butcher is plenty enough to know I'll love it, so I keep everything as a surprise for when I'll read the book. :-)
Edit: Release next October... Damn... That's far for a book that's already written...