“Prepare for major goosebumps.” —PopSugar “The must-have for any horror fan.” —Marie Claire An eerie horror debut about a little boy who recovers from a mysterious illness and confronts the shadowy forces behind his new imaginary friend... Kids have imaginary friends. Rachel knows this. So when her young son, Billy, miraculously recovers from a mysterious 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 tha…Show more