The Jefferson Key (with bonus short story The Devil's Gold): A Novel (Cotton Malone Book 7)

#1 · The Templar Legacy: A Novel (Cotton Malone Book 1) #2 · The Alexandria Link (Cotton Malone Book 2) #3 · The Venetian Betrayal: A Novel (Cotton Malone Book 3) #4 · The Charlemagne Pursuit: A Novel (Cotton Malone Book 4) #5 · The Paris Vendetta: A Novel (Cotton Malone Book 5) #6 · The Emperor's Tomb (with bonus short story The Balkan Escape): A Novel (Cotton Malone Book 6) #7 · The Jefferson Key (with bonus short story The Devil's Gold): A Novel (Cotton Malone Book 7) #8 · The King's Deception (with bonus novella The Tudor Plot): A Novel (Cotton Malone Book 8) #9 · The Lincoln Myth: A Novel (Cotton Malone Book 9) #10 · The Patriot Threat: A Novel (Cotton Malone Book 10) #11 · The 14th Colony: A Novel (Cotton Malone Book 11) #12 · The Lost Order: A Novel (Cotton Malone Book 12) #13 · The Bishop's Pawn: A Novel (Cotton Malone Book 13) #14 · The Malta Exchange: A Novel (Cotton Malone Book 14) #15 · The Warsaw Protocol: A Novel (Cotton Malone Book 15)