There are 1 book by Ciara O'Brien on BookOrb. A strong starting point is Spectral Borders (2024). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Ciara O'Brien written?
BookOrb lists 1 book by Ciara O'Brien.
Where should I start with Ciara O'Brien?
A good starting point is Spectral Borders (2024).
What is the Ciara O'Brien books in order list?
In publication order: 1. Spectral Borders (2024).