"Radio-discovering boys in the mountains: or, Northern calls for help" is an exciting adventure novel from the famous writer Chapman Allen. In this book, readers will see how young detectives solve mysterious and dangerous situations thanks to their perseverance and ingenuity. This story of friendship, courage and devotion will prove that even the most difficult challenges can be overcome when together. "Boys radio discoverers in the mountains" is a book that not only entertains, but also inspires great deeds and victories.