No one really knows where Jem's beloved dog, Nugget, came from when Strike-it-rich Sam found him. Jem doesn't care; he just knows he loves his pup. But now "missing dog" posters are going up around town--and the dog looks just like Nugget! It turns out the pooch is a golden retriever, a brand-new breed that's very rare. A rich man from Scotland was visiting San Francisco when one of his dogs was lost in the mountains above Goldtown. There's...