Duck

""The narrator of this story assumes that Duck both loves and needs him. But when Duck goes missing, things like playing in the bath, story time and even chocolate cake lose their appeal. Great is the relief when Duck is discovered under a cushion but even greater is the discovery that the narrator needs Duck just as much as Duck needs him!"--Provided by publisher."@en
"The unnamed narrator of this story assumes that Duck both loves and needs him. But when Duck goes missing, things like playing in the bath and story time lose their appeal. Great is the relief when Duck is discovered under a cushion - but even greater is the discovery that the narrator needs Duck just as much as Duck needs him."
"When Duck goes missing, a boy's favorite activities lose their appeal and he comes to know that he needs Duck just as much as Duck needs him."
"When Duck goes missing, a boy's favorite activities lose their appeal and he comes to know that he needs Duck just as much as Duck needs him."@en