• 7 Memorial Library
• 1 College Library
• 1 Ebling Library

• 9 Private investigators
• 7 Gennaro, Angela (Fictitious character)
• 7 Kenzie, Patrick (Fictitious character)
• 4 Police
• 3 Brainwashing
• 3 Children
• 3 Crimes against
• 3 Drug testing
• 3 Eugenics
• 3 Islands
• 3 Male friendship
• 3 Psychiatric hospital patients
• 3 United States marshals
• 2 Missing children
• 2 Missing persons
• 1 Criminals
• 1 Family violence
• 1 Friendship in children
• 1 Inner cities
• 1 Investigation
• 1 Irish Americans
• 1 Mothers and daughters
• 1 Murder
• 1 Organized crime
• 1 Psychopaths

• 1 Digitalia (Firm)
• 1 Gurguí, Monserrat
• 1 HarperCollins (Firm)
• 1 Higgins, George V., 1939-1999
• 1 Sabaté, Hernán

• 16 English
• 1 Chinese
• 1 Spanish

• 15 Boston
• 14 Boston (Mass.)

• 8 Mystery fiction
• 6 Psychological fiction
• 4 Detective and mystery fiction
• 3 Suspense fiction
• 1 Noir fiction
• 1 Novels
• 1 Social problem fiction
• 1 Thrillers (Fiction)

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