The First Assassin — John J. Miller

Winter 1861: the United States teeters on the brink of civil war. In Washington, D.C., Colonel Charles P. Rook is tapped to organize the district's security and to protect president-elect Abraham Lincoln from the death threats pouring in to the White House. He surrounds the president with bodyguards and fills the city's rooftops with sharpshooters, diligently investigating the conspiracies being fomented with increasing intensity by Southern secessionists.

Yet amidst the chaos and confusion, a foreigner slips unnoticed into the teeming city. Hired by a wealthy Southern planter to eliminate President Lincoln and destroy the Union once and for all, the assassin catches Rook's attention by cutting down anyone who gets in his way. As the bodies begin to pile up, Rook realizes he is caught in a dangerous game of cat-and-mouse with a cold-blooded killer who will stop at nothing to complete his mission. Rook's only hope is Portia, a runaway slave who holds the key to the assassin's identity -- if she can stay alive long enough to deliver it.