内容简介：
Meet Mulligan, a puppy who is adopted and moves to another state. Follow his adventures as he makes new friends, as he discovers the computer and begins emailing "cousins" and new friends, as he goes to work to make dog food money and goes on his first sleepover with a cat named Kabuki. And learn how he gets his nickname, "Pistol." A must read for children who love animals and who are making transitions in their own lives.