Voyage with the Vikings

Over 2 million sold in the series! While visiting Mr. Whittaker at Whit's Soda Shoppe, Beth and Patrick find a mysterious letter in the Imagination Station requesting a Viking sunstone. The letter is old and says that someone named Albert will be imprisoned if the sunstone isn't found. Mr. Whittaker sends cousins Patrick and Beth to Greenland circa 1000. On their quest for the sunstone, the cousin...