nOver 1 million sold in series n nWhile visiting Mr. Whittaker at Whits 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 isnt found. Mr. Whittaker sends cousins Patrick and Beth to Greenland circa 1000. On their quest for the sunstone, the cousins meet Vikings Erik the Red and Leif Eriksson--and find the sunstone as they join Leif on his first voyage to North America. But the adventure is just beginning, for when they return to Mr. Whittakers workshop with the sunstone, there is another note waiting for them, requesting a silver goblet. n nJoin Patrick and Beth as they continue their travel to various lands and time in the Imagination Station book series.