Dixon W. franklin <br/><br/>
The Secret Panel 
Franklin W. Dixon 
 - Canada  Franklin W. Dixon  1946 
 - Extent- vii, 178 pages:  illustrations ;  20cm 
<br/><br/> Frank and Joe investigate a "lockless" mansion belonging to a supposedly dead man, John Mead. The brothers uncover a plot involving a master criminal using Mead's advanced, hidden-lock technology to pull off robberies, ultimately tying the mansion to a kidnapping case.  
<br/><br/><label>ISBN: </label>97804489256 
<br/><br/><label>Subjects--Topical Terms: </label><br/>written as a letter to his son as he begins boarding school. It serves as a guide on how to navigate life, social interactions, and personal development.<br/>highlights several, often implicit, moral and practical lessons through the actions of Frank and Joe Hardy
<br/><br/><label>Dewey Class. No.: </label>Fic. D621s 2008