Delightful Detectives

Here are the authors. Name the detectives. Then use the highlighted letters to spell a new word.

Carolyn Keen's teen crime solver
 
Arthur Conan Doyle's famous consulting detective
 
Dashiell Hammett's hard-boiled hero
 
Agatha Christie's shrewd old snoop
 
Franklin W. Dixon's team of brother detectives
 
 
Real name of Philip Pullman's Victorian-era investigator, Sally
 
Gertrude Chandler Warner's Alden orphans
 
 
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