There are 2 books by Zacharias O'Bryan on BookOrb. A strong starting point is Seven Poems and Songs from Spirit Thorn (2010). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Zacharias O'Bryan written?
BookOrb lists 2 books by Zacharias O'Bryan.
Where should I start with Zacharias O'Bryan?
A good starting point is Seven Poems and Songs from Spirit Thorn (2010).
What is the Zacharias O'Bryan books in order list?
In publication order: 1. Seven Poems and Songs from Spirit Thorn (2010), 2. Spirit Thorn (A Tale of Parallel Worlds) (2010).