There are 1 book by Gabi O'Brion on BookOrb. A strong starting point is Adventure to the Witch (2012). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Gabi O'Brion written?
BookOrb lists 1 book by Gabi O'Brion.
Where should I start with Gabi O'Brion?
A good starting point is Adventure to the Witch (2012).
What is the Gabi O'Brion books in order list?
In publication order: 1. Adventure to the Witch (2012).