Tess Gerritsen began to write fiction while on maternity leave. Tess’s first medical thriller, Harvest, was released in hardcover in 1996, and it marked her debut on the New York Times bestseller list. Her suspense novels since then have been: Life Support (1997), Bloodstream (1998), Gravity (1999), The Surgeon (2001), The Apprentice (2002), The Sinner (2003), Body Double (2004), Vanish (2005), The Mephisto Club (2006), The Bone Garden (2007), The Keepsake (2008; UK title: Keeping the Dead), and Ice Cold (2010; UK title: The Killing Place.) Her books have been translated into 37 languages, and more than 20 million copies have been sold around the world.