Fantasy novels are a genre of fiction that often take place in imaginary worlds filled with magic, mythical creatures, and epic adventures. These stories frequently feature heroes and heroines who embark on quests, face challenges, and encounter various fantastical beings, such as dragons, elves, and wizards. Common themes in fantasy novels include the battle between good and evil, the exploration of identity, and the importance of friendship and bravery. Popular examples of fantasy literature include J.R.R. Tolkien's "The Lord of the Rings" and J.K. Rowling's "Harry Potter" series, which have captivated readers of all ages.