The affliction : a novel
(Book)

Series numeration from author's website.

At a reception for the faculty and trustees to welcome Maggie Detweiler's team, no one seems keener for all to go well than Florence Meagher, a star teacher who is loved and respected in spite of her affliction - that she can never stop talking. Two days later, Florence's body is found in the campus swimming pool. Maggie obviously knows schools, but she also knows something about investigating murder.