Enna became Ani's best friend and secret keeper in The Goose Girl. In this story, Enna discovers her brother, Leifer's secret--making fire--only he can't control it.
Bayern goes to war with the neighboring kingdom of Tira. Fire consumes Leifer on the battlefield. Enna finds the instructions for making fire on Leifer. She decides to only use this power for good, meaning she continues to fight Tira for Leifer's sake.
Unfortunately, she has difficulty controlling the need to burn. She goes on secret raids and sets fire to Tiran camps and villages. Her friends warn her that she is out of control, but takes matters into her own hands.
She is taken captive by a Tiran who convinces her that he loves her and tries to manipulate her. She finally escapes with the help of her true friends.
Enna burns nearly a tenth of the Tiran Army before they surrender bringing an end to the war. The burning nearly consumes her because she lost control.
She wakes up in the palace, dying of a fever. I order to save Enna, Ani (now called Isi), takes her on a journey to learn from a people who have survived fire-speaking. Isi is also at risk from her ability to wind speak, to the point that Enna is more concerned for Isi's well being than for her own. She senses that Isi is at risk from more than just the wind-speak.
I like how the characters develop together in this story. Isi and Enna are humble enough to learn that they both need each other. Each is the key to the other's survival. How many times in real life do we think we are in control, whether it's pride, money, or whatever? How many times are we rescued by friends and family, the ones who love us unconditionally in spite of the mess we've made?
And Enna's love interest, Finn--goes from timid, gentle forest boy to Bayern's finest swordsman. In the end he gets his girl.
I give this book 4 1/2 stars out of 5.
Book #3 is River Secrets and Book #4 is Forest Born.