Wings of Fire

From author Tui T. Sutherland's website:

Imagine you were stolen from your family.

Imagine you were raised by someone who didn’t love you, didn’t understand you, and didn’t care to try.

Imagine this has happened because someone thinks you have a destiny.

Imagine there is a war raging outside, and according to a mysterious prophecy, only you and your four friends can stop it.  Although nobody seems to know exactly how you’re going to do that.

This is your fate.  Imagine you have no choice.

Or do you?

Oh, and p.s.  You’re a dragon.