The Merchant Prince Series by Armin Shimerman, Michael Scott, Chelsea Quinn Yarbro

Despite his lack of physical stature, the five-foot-tall John Dee was a towering figure in Renaissance Europe: to royalty, enemy to the vicious de Medici clan -- and confidant of Dyckson, a member of the alien race known as the Roc. Ancient and wise, the Roc have come to Earth to observe the evolution of humanity, not to interfere. But during the course of his studies, Dyckson has come to call Dee friend... moreDespite his lack of physical stature, the five-foot-tall John Dee was a towering figure in Renaissance Europe: to royalty, enemy to the vicious de Medici clan -- and confidant of Dyckson, a member of the alien race known as the Roc. Ancient and wise, the Roc have come to Earth to observe the evolution of humanity, not to interfere. But during the course of his studies, Dyckson has come to call Dee friend. When the de Medicis arrest Dee in Venice, Dyckson chooses to save his friend from prison and leave him in suspended animation until the year 2099. The "philosopher of Albion" wakes in a confusing future where humanity is on the brink of developing the ultimate weapon -- a weapon that will mean the destruction of the human race!The only thing that can prevent Armageddon is a genius from the past -- but can even the great John Dee save humanity from itself? less

The fight against the root of all evil requires a master! Despite being a time traveler and literal Renaissance man, Dr. John Dee has adjusted admirably to life on Earth in 2100. But his mercantile genius is once again put to the test when he and his twenty-second-century comrades, Morgan d'Winter and Kelly Edwards, are called upon to protect their world from the machinations of an alien renegade posing as a messiah... moreThe fight against the root of all evil requires a master! Despite being a time traveler and literal Renaissance man, Dr. John Dee has adjusted admirably to life on Earth in 2100. But his mercantile genius is once again put to the test when he and his twenty-second-century comrades, Morgan d'Winter and Kelly Edwards, are called upon to protect their world from the machinations of an alien renegade posing as a messiah. When the chips are down, only John Dee can save the past, present, and future from this pretender and his expanding army of human zombies! less

I was born on the thirteenth day of July in the eighteenth year of the reign of His Glorious Majesty Henry VIII, in the one thousand five hundred and twenty-seventh year after our Lord's death. I had the great good fortune to be born an Englishman, and when I came of age in both knowledge and reason, I served my country and my queen, Elizabeth Regina. Trapped by the Medici, I was condemned as a heretic and a spy, walled up alive, condemned to die for queen and country... moreI was born on the thirteenth day of July in the eighteenth year of the reign of His Glorious Majesty Henry VIII, in the one thousand five hundred and twenty-seventh year after our Lord's death. I had the great good fortune to be born an Englishman, and when I came of age in both knowledge and reason, I served my country and my queen, Elizabeth Regina. Trapped by the Medici, I was condemned as a heretic and a spy, walled up alive, condemned to die for queen and country. Instead the hand of Fortune swept me up and I was spared. It is now the eighteenth day of March in the year 2101, and I am as trapped as I was in Venice. Fortune's servant, Dyckon, a creature called the Roc -- who by his very countenance calls forth the living visage of the Dark Ones -- swears he will find a way to send me home, to my time, my place, my queen. But the forces of this time and place rage against me as surely as did the Medicis. Others of Dyckon's race even now look to wipe clean the face of the planet of every human. The powers of this time plot to subjugate me with their horrible machine -- an identity chip. And if these powers were to find out that I was in league with the Roc, I would be condemned.It will take all the skills I learned as a spymaster to keep me free, to stop the Roc, and set me on the path to home.THE SPELLBINDING CONCLUSION OF THE SAGA OF THE MERCHANT PRINCE, DOCTOR JOHN DEE. less