The mystery of the secret room 

 - London :  Methuen Co.Ltd,  1943. 
 - 216p.;  18cm 
<br/><br/><label>ISBN: </label>9781405228343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English Fiction<br/>English
<br/><br/><label>Dewey Class. No.: </label>823  / BLY