Oswald, James. <br/><br/>
The obsidian throne / 
J.D. Oswald. 
 - London :  Penguin Books, Limited  2016. 
 - 599 p. ;  20 cm. 
 - The ballad of Sir Benfro .
<br/><br/><label>ISBN: </label>9781405917803 
<br/><br/><label>Subjects--Personal Names: </label><br/>Benfro, Sir (Fictitious character) --Fiction.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dragons--Fiction.