Cat O'Grady and Billie Charland return in this second book in the Billie/Cat Commitment Series.When Cat receives an envelope in the mail from an anonymous sender, its contents disrupts the Charland household and sets off a chain of events that severely strains Billie's and Cat's commitment to each other and to their family. Billie overreacts with uncharacteristic meanness as well as debilitating headaches and occasional blackouts. Cat convinces her...