Cambridge, Massachusetts: home to Homer and Mary Kelly, Harvard University, the Mount Auburn Cemetery, and...Leonard Sheldrake. Leonard, Homer's friend, often compares the many-faceted city of Cambridge to a favorite engraving, filled with strange power and wonder, by the twentieth-century Dutch artist Maurits Escher. Leonard is a huge fan of the artist and is thrilled when Cambridge hosts an Escher exhibit. While basking in all-things-Escher during his first visit to the gallery, he meets a woman in a green coat - Frieda - who is equally enthralled by Escher's brilliance. Leonard falls instantly in love - but Frieda hurries away without telling him her last name, her address, or her phone number - though she does hint that if he knew more about her, he would not love her.Despite Frieda's warning and their all-too-brief encounter, Leonard is now desperately in love with this elusive woman - and desperate to find her. So Homer and Mary offer to help - but looking for her makes them feel as if they were lost in an Escher labyrinth as they encounter murders of the past, secrets of today, modern fortune-tellers, and the ghosts of Mount Auburn Cemetery. Read Less