What do you want so badly that you can taste itand can you persuade someone to give it to you? Thats the subject of a writing assignment Calvins fourth-grade teacher, Mr. Purdy, gives the class. Calvin wants a dog! He reads what hes written to his mom to see just how persuasive he can be. No way, Mom says: Stella, their babysitter, might be allergic, and Calvin is too irresponsible to care for a pet.Luckily, Moms boyfriend, Ledward, is on Calvins side. He takes Calvin to a place he calls dog heaven. There Calvin meets the dog of his dreamsStreak. Now Calvins got to convince Mom hes dog-responsible, because he and Streak belong together!From the Hardcover edition.