Book excerpt: Long before the advent of the U.S. Secret Service, Kellen Malone is called upon by the president to protect him from a ruthless and determined group of assassins, hell-bent on his destruction. Malone and Joe Clements team up as they ride across the Old West, putting themselves in harm’s way at every stop. See if Kellen Malone has what it takes to derail the assassination of President Grover Cleveland.