Black, Holly <br/><br/>
Magisterium : the silver mask 

 -  Corgi Books  2017 
 - 232p. : ill.   
<br/><br/><label>ISBN: </label>9780552567749 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cassandra Clare<br/>Children's literature<br/>Children's literature<br/>English literature<br/>Fantasy -- Children's literature<br/>Holly Black