A Norwegian spy in WWII

Did you know that during World War II, the Nazis invaded Norway?  It's true, and you'll learn about how some Norwegians reacted to the invasion in Shadow on the Mountain by Margi Preus.  Espen is 14, and life is rough as the Nazis place more and more restrictions on the lives of him and his friends, even taking over their beloved soccer team.  Espen joins the resistance movement: first, delivering illegal newspapers; then, passing messages; and finally, becoming a spy.  Two of his classmates join up with the Nazis, and soon Espen is real danger, trying to escape to Sweden by skiing through the mountains.  Will he make it?   The book includes a helpful map and glossary, and it's based on the real-life adventures of Norwegian Erling Storrusten.