There are 2 books by Misty O'Brien on BookOrb. A strong starting point is Riddle of Riah (2015). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Misty O'Brien written?
BookOrb lists 2 books by Misty O'Brien.
Where should I start with Misty O'Brien?
A good starting point is Riddle of Riah (2015).
What is the Misty O'Brien books in order list?
In publication order: 1. Riddle of Riah (2015), 2. Riah and the Dark Water Riddle (2021).