This box set features four classic novels: Frankenstein, Dr. Jekyll, Washington Irving's "The Legend of Sleepy Hollow", and H.G. Wellsand the Time Machine. The books are adapted and illustrated for young readers, making them suitable for ages 9-12 and even adults. The authors include Mary Shelley, Washington Irving, H.G. Wells, and Robert Louis Stevenson , making this box set a collection of classic literature. The books are in English and were written in the United States. The intended audience is young adults, but anyone can enjoy these timeless tales. The Time Machine Frankenstein The Legend of Sleepy Hollow Dr. Jekyll and Mr. Hyde