"An eerie debut about a little boy who recovers from a mysterious global flu that's killed thousands and inherits an imaginary friend who makes him do violent things... Kids have imaginary friends. Rachel knows this. So when her young son, Billy, miraculously recovers from a horrible flu that has proven fatal for many, she thinks nothing of Delfy, his new invisible friend. After all, her family is healthy and that's all that matters. But soon Delfy is telling Billy what to do, and the boy is acting up and lashing out in ways he never has before. As Delfy's influence is growing stranger and more sinister by the day, and rising tensions threaten to tear Rachel's family apart, she clings to one purpose: to protect her children at any cost--even from themselves. We Hear Voices is a mischievously gripping near-future horror novel that tests the fragility of family and the terrifying gray area between fear and love"-- Provided by publisher.