Flynn's fifth novel, "Executive Power", was published in hardcover by Atria Books in May 2003, followed by his sixth novel, "Memorial Day" in 2004, his seventh novel "Consent To Kill" in October 2005, his eighth novel "Act Of Treason" in October 2006, his ninth novel "Protect And Defend" in 2007 and his tenth novel "Extreme Measures" in 2008. With the exception of his first novel "Term Limits", his works centered around counter-terrorism agent "Mitch Rapp". His 2008 release, "Extreme Measures", became the ninth novel in the series.