- Dog has everything he needs in his big blue suitcase - it"s the perfect fit for all the little treasures he has collected along the way - and Dog is sure that he is happy just him and his suitcase. Until one night, Mouse comes along and Dog discovers that life is richer and more fun with a friend and his big blue suitcase is actually just right for two. Oh Dog, said Mouse. You look sad. What"s wrong? Well, sighed Dog, I thought I had everything I needed in my suitcase. But now I think I need something else - though I really don"t know what... Don"t worry, smiled Mouse. Whatever it is, we"ll find it! A Stories Aloud paperback title - includes a free audio reading using children"s voices, complete with sound effects and original music.