Kingdom of Wind & Fire (Paperback) (ISBN-13: 9798630007131)

Twins Brianna and Brayden have had to hide their volatile elemental powers all their lives. But now they must use them if they want to survive.

After fifteen years apart, Brayden escapes enslavement to a SpiritSinger who controls his every move. No sooner has he reunited with his family when the twins' mother is captured by the same enemy.

The twins must make an impossible choice: to rescue her or follow her last wish. With the help of a snarky smuggler and his crew, Brayden and Brianna embark on a quest to hone their magical skills and save their mother.

But evil is brewing on the horizon, and it's coming for anyone with power.