Act of Darkness by Jane Haddam

We couldn't find a cover image for this book but we did find it listed on Amazon

Important places

Oyster Bay (15)
Washington (2,457)

Counties

Nassau (47)
District of Columbia (2,673)

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District of Columbia (2,676)
New York (9,763)

Countries

United States (64,950)

Other geographical areas

Long Island (416)
Piedmont (USA) (1,063)