There are 1 book by Troy O'Brien on BookOrb. A strong starting point is Throwing Cats at the Sky (2020). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Troy O'Brien written?
BookOrb lists 1 book by Troy O'Brien.
Where should I start with Troy O'Brien?
A good starting point is Throwing Cats at the Sky (2020).
What is the Troy O'Brien books in order list?
In publication order: 1. Throwing Cats at the Sky (2020).