Perri O’Shaughnessy Books in Order
Perri O'Shaughnessy is the pen name of the authors Mary and Pamela O'Shaughnessy, sisters who live in Northern California. Pamela, a Harvard Law School graduate, was a trial lawyer for sixteen years. Mary is a former editor and writer for multimedia projects. Their novels have been translated into many languages including Dutch, German, Bulgarian, French, Spanish, and Japanese. Several have been New York Times bestsellers.
Bibliography verified: January 2026
Book Series by Perri O’Shaughnessy
- #1AmazonMotion to Suppress(1995)
- #2AmazonObstruction of Justice(1997)
- #3AmazonBreach of Promise(1998)
- #4AmazonActs of Malice(1999)
- #5AmazonMove to Strike(2000)
- #6AmazonWrit of Execution(2001)
- #7AmazonUnfit to Practice(2002)
- #8AmazonPresumption of Death(2003)
- #9AmazonUnlucky in Law(2004)
- #10AmazonCase of Lies(2005)
- #11AmazonShow No Fear(2008)
- #12AmazonDreams of the Dead(2011)
About Perri O’Shaughnessy
Perri O'Shaughnessy is the pen name of the authors Mary and Pamela O'Shaughnessy, sisters who live in Northern California. Pamela, a Harvard Law School graduate, was a trial lawyer for sixteen years. Mary is a former editor and writer for multimedia projects. Their novels have been translated into many languages including Dutch, German, Bulgarian, French, Spanish, and Japanese. Several have been New York Times bestsellers.
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