It's Easter at Princeton. Seniors are scrambling to finish their theses. And two students, Tom Sullivan and Paul Harris, are a hair's breadth from solving the mysteries of the Hypnerotomachia Poliphili--a renowned text attributed to an Italian nobleman, a work that has baffled scholars since its publication in 1499. For Tom, their research has been a link to his family's past -- and an obstacle to the woman he loves. For Paul, it has become an obsession, the very reason for living. But as their deadline looms, research has stalled -- until a long-lost diary surfaces with a vital clue. And when a fellow researcher is murdered just hours later, Tom and Paul realize that they are not the first to glimpse the Hypnerotomachia 's secrets.