There are 1 book by Giles O'Bryen on BookOrb. A strong starting point is World famous heroes (2005). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Giles O'Bryen written?
BookOrb lists 1 book by Giles O'Bryen.
Where should I start with Giles O'Bryen?
A good starting point is World famous heroes (2005).
What is the Giles O'Bryen books in order list?
In publication order: 1. World famous heroes (2005).