E. K Johnston 
Prairie Fire [PDF ebook] 

Listen! For the song of Owen Thorskard has a second verse.

Every dragon slayer owes the Oil Watch a period of service, and young Owen was no exception. What made him different was that he did not enlist alone. His two closest friends stood with him shoulder to shoulder. Steeled by success and hope, the three were confident in their plan. And though Siobhan Mc Quaid was the first bard in a generation, she managed to forge a role for herself and herald Owen as a new kind of dragon slayer for a new kind of future.

But the arc of history is long and hardened by dragon fire. Try as they might, Owen and his friends could not twist it to their will. Not all the way. Not all together.

Listen! I am Siobhan Mc Quaid. I know the cost of even a small bend in the course of history. Listen!