The Trumpeter of Krakow by Eric P. Kelly is a historical adventure novel set in 15th-century Poland, blending mystery, legend, and cultural heritage. Awarded the Newbery Medal in 1929, the book introduces young readers to the rich history and folklore of medieval Krakow through a gripping and atmospheric narrative. The story follows a young boy named Joseph Charnetski, who arrives in Krakow with his family after fleeing from danger in Ukraine. They carry with them a powerful secret linked to the legendary Great Tarnov Crystal—a treasure that must be protected at all costs. As Joseph takes up the role of trumpeter in Krakow's iconic Church of Our Lady Mary, he becomes entwined in a tale of espionage, alchemy, and national identity. Kelly masterfully weaves historical detail with elements of Polish legend, particularly the real-life tradition of the hourly trumpet call (hejnał) played from the church tower—a symbol of vigilance and sacrifice. Through themes of courage, duty, and integrity, The Trumpeter of Krakow offers readers both an engaging adventure and a window into Eastern European history and culture. This timeless novel remains a classic of historical fiction for young readers, combining educational value with thrilling storytelling.