Code Grey

It's spring break, and Dulcie Schwartz has stayed behind in almost-deserted Cambridge, Massachusetts, to concentrate on her thesis. But when a former student turned vagrant, Jeremy Mumbles, is found injured, with a valuable missing book clutched in his arms, Dulcie can't seem to let it go. 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.