"Thriller writing at its best... A gripping story that's hard to put down." --Midwest Book Review, Diane Donovan (re Any Means Necessary) ????? From #1 bestselling and USA Today bestselling author Jack Mars, author of the critically acclaimed Luke Stone and Agent Zero series (with over 5,000 five-star reviews), comes an explosive new action-packed espionage series that takes readers on a wild ride across Europe, America, and the world-perfect for fans of Dan Brown, Daniel Silva and Jack Carr. A missing piece of the Aztec calendar becomes the key to ultimate destruction when archeologist Jana Peters discovers it reveals a hidden temple containing astronomical knowledge that can predict celestial movement with lethal precision. Racing against a tech corporation deploying orbital drones to weaponize the ancient calendar, she and CIA Agent Jacob Snow must prevent corporate megalomaniacs from turning the heavens themselves into weapons of mass annihilation. An unputdownable action thriller with heart-pounding suspense and unforeseen twists, TARGET TWENTY-THREE is the twenty-third novel in an exhilarating new series by a #1 bestselling author that will make you fall in love with a brand-new action hero-and keep you turning pages late into the night. Future books in the series are now available! "One of the best thrillers I have read this year. The plot is intelligent and will keep you hooked from the beginning. The author did a superb job creating a set of characters who are fully developed and very much enjoyable. I can hardly wait for the sequel." --Books and Movie Reviews, Roberto Mattos (re Any Means Necessary) ?????