There are 2 books by Dillon O'Brien on BookOrb. A strong starting point is Frank Blake (1876). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Showing 1 of 2 titles.
Frequently asked questions
How many books has Dillon O'Brien written?
BookOrb lists 2 books by Dillon O'Brien.
Where should I start with Dillon O'Brien?
A good starting point is Frank Blake (1876).
What is the Dillon O'Brien books in order list?
In publication order: 1. Frank Blake (1876).