The original Hardy Boys series
30. The Wailing Siren Mystery
   
         
   

Original: 1951, 214 pages

Revised: 1968, 177 pages

Revision type: Same story, same writing

Cover art

Volume 30
1951

Volume 30
1968
   
      Plot summary    
   
Coming soon
   
      Comparison of original and revised editions    
   
Coming soon
   
      Notes    
   
Coming soon
   
         
   

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