"The Ready Player Two" is a science fiction novel by Ernest Cline, serving as a sequel to the popular book Ready Player One. The story continues the adventures of Wade Watts, who discovers a new virtual reality challenge that could change the world. In this sequel, Wade and his friends must navigate a series of puzzles and challenges within the OASIS, a vast virtual universe. As they compete against new and old rivals, they confront themes of friendship, identity, and the implications of technology on society.