Hildick, E. W. <br/><br/>
The case of the phantom frog / 
by E. W. Hildick ; illustrated by Lisl Weil. 
 - New York :  Macmillan,  1979. 
 - 121 p. :  ill. 
 - A McGurk mystery .
<br/><br/> The McGurk detectives go undercover to unmask the demon behind a phantom "werefrog" and expose a "supernatural" hoax. 
<br/><br/><label>ISBN: </label>0027438406 
<br/><br/><label>LCCN: </label>78010836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery fiction.<br/>Mystery and Detective Stories
<br/><br/><label>Dewey Class. No.: </label>Fic