''The Professional'' is the 38th book in
Robert B. Parker
Robert Brown Parker (September 17, 1932 – January 18, 2010) was an American writer, primarily of fiction within the mystery/detective genre. His most famous works were the 40 novels written about the fictional private detective Spenser. AB ...
's
Spenser series and first published in 2009.
Spenser investigates a man who is blackmailing the wives of Boston's wealthiest men.
References
2009 American novels
American detective novels
Spenser (novel series)
Blackmail
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