Black Mercury (The Drifting Isle Chronicles Book 2) for FREE (was $3.99) by Free Book Feed | May 17, 2019 | Free Kindle Book | FacebookTwitterGoogle+Pinterest Black Mercury (The Drifting Isle Chronicles Book 2) by Charlotte E. English 4.5 out of 5 Stars (9 Reveiws)$0.00 was $3.99 Download Now!