Researching for her book on 19th-century virtuoso pianist Clara Schumann and her eight children, Professor Megan Crespi encounters startling hatred or praise for them and for Clara's composer husband Robert. These strong reactions come in the form of grave vandalism, outrageous graffiti on Schumann museums across Germany, in Switzerland and Vienna, and even murder. Why? Megan's travel companion is her sister-in-law Susan, a pediatrician whose expertise...