Wings of Fire-The Dark Secret #4 by Tui T. Sutherland

Every spare moment my ten year old steals away to read this series. He announced that "Tui T. Sutherland" is his new favorite author! He read it to himself.
Starflight, a Nightwing,  is the main character in this book.  He finally meets his tribe and finds himself in situations where he is the fighting to save himself but knows his friends, the Rainwings, need his help.
Warnings/consideration: violence with dragon fights/war
Guided Reading Level: W (5th-6th)
-Borrowed from the library.