Through Sun and Light: or, The Young Engineer of the Lake Shore Railroad is an exciting adventure book by renowned author Oliver Optic. The main character is a young engineer who decides to devote his life to the construction and development of the Lake Shore Railroad. Readers will experience exciting events together with him, and will also participate in solving various puzzles and challenges that will fall on the young engineer's path. Filled with friendship, loyalty, and self-belief, this book will be a thrilling read for both younger audiences and adult fans of classic adventure stories.