What do you want so badly that you can taste it—and 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 dreams—Streak. Now Calvins got to convince Mom hes dog-responsible, because he and Streak belong together!From the Hardcover edition.,