Key, Alexander,  1904-1979. <br/><br/>
The forgotten door. 

 - Philadelphia :  New York :  Westminster Press ;  Scholastic,  c1965. 
 - 126 p.  2l cm. 
<br/><br/><label>ISBN: </label>0758795467 0590431307 9780758795465 (FollettBound) 
<br/><br/><label>LCCN: </label>65010170 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction.