Timeline by Michael Crichton. From about page 39 I was totally hooked. Wild ride! Crichton takes a concept and researches in completely (bibliographies in the back) and then weaves a story around it. This book combines Medieval England and Quantum physics. I try to read one of Crichton's book's each year. State of Fear was very interesting with a plot that revolved around politicizing science.
In an Arizona desert, a man wanders in a daze, speaking words that make no sense. Within twenty-four hours he is dead, his body swiftly cremated by his only known associates. Halfway around the world, archaeologists make a shocking discovery at a medieval site. Suddenly they are swept off to the headquarters of a secretive multinational corporation that has developed an astounding technology. Now this group is about to get a chance not to study the past but to enter it.