There are 1 book by Damian O'Brien on BookOrb. A strong starting point is If Houses, Why Not Mouses? (2012). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Damian O'Brien written?
BookOrb lists 1 book by Damian O'Brien.
Where should I start with Damian O'Brien?
A good starting point is If Houses, Why Not Mouses? (2012).
What is the Damian O'Brien books in order list?
In publication order: 1. If Houses, Why Not Mouses? (2012).