Here's what it says on the back cover:
Precisely five weeks ago, Professor Basil Killingsley had perused a rare edition of RAnulf Higden's Polychronicon at the Smedley Library. Now it's missing...fromthe shelves, the records, and from everyone's memory. Then the murders begin...Who is responsible? and who is next? The nervous curator of rare book, the buxom and bejeweled assistant director? As Professor Killingsley is about to discover, murder is an open book.