Harvard grad student Dulcie Schwartz sets out to prove a troubled academic innocent in this "unusual and intelligent" paranormal feline mystery series (Booklist). It's spring break, and Harvard doctoral candidate Dulcie Schwartz has stayed behind in almost-deserted Cambridge, Massachusetts, to concentrate on her thesis. But when Jeremy "Mumbles" Mumbleigh, a once-promising student turned harmless vagrant, is found injured-with a valuable missing book clutched in his arms-Dulcie puts her thesis on hold. What was he doing with the book? And why has it turned up after all these years? With Jeremy now the prime suspect for a series of break-ins in the area, Dulcie is determined to clear the unfortunate former scholar's name. But when she finds a connection between the book he was carrying and her own research into an anonymous Gothic author, the search for clues takes on a new intensity-and a new menace. Code Grey is the ninth book in the Dulcie Schwartz Feline Mysteries, but you may enjoy reading the series in any order. "[This] series continues to surprise, with additional backstory on some of the characters adding layers of interest. Readers will not want Dulcie to finish her dissertation anytime soon." -Booklist