"Nordic Countries; or, Young America in Russia and Prussia" is an exciting adventure book by the famous writer Oliver Optik. In this book, readers go on an exciting journey with young Americans who find themselves in the distant countries of Northern Europe. They study local customs, culture and history, face interesting challenges and make extraordinary discoveries. The book "Nordic countries; or, Young America in Russia and Prussia" will captivate readers with its dynamics, interesting plot and unpredictable turns of events.