Illus. in black-and-white. Marvin's friends think he's the luckiest boy in the world when his teacher asks him to dog-sit for a week. He gets to be alone in Mrs. North's house! But pretty soon it starts to look as if Marvin is not so lucky after all...."This title will lure the most reluctant readers, who will be as glad to make Marvin's acquaintance as his old fans will be to greet a new adventure."--<i>Bulletin, Center for Children's Books.  </i>