Question: What is the final book in the series that depicts a society that has eliminated emotion and color to attempt to achieve equality?

full_context: Document 1: The Last Star (novel): The Last Star is a young adult science fiction novel written by American author Rick Yancey. It is the sequel to "The Infinite Sea" and the third and final book of the 5th Wave series. It was published on May 24, 2016.
Document 2: The Giver (film): The Giver is a 2014 US social science fiction film directed by Phillip Noyce and starring Jeff Bridges, Brenton Thwaites, Odeya Rush, Meryl Streep, Alexander Skarsgård, Katie Holmes and Cameron Monaghan. The film is based on the 1993 novel "The Giver" by Lois Lowry.
Document 3: A Separate Peace: A Separate Peace is a coming-of-age novel by John Knowles. Based on his earlier short story, "Phineas," it was Knowles' first published novel and became his best-known work. Set against the backdrop of World War II, "A Separate Peace "explores morality, patriotism and loss of innocence through its narrator, Gene.
Document 4: Utopia (Child novel): Utopia (ISBN  ) is the first solo novel by Lincoln Child published in 2002. It is set in a futuristic amusement park called "Utopia", a park that relies heavily on holographics and robotics. Dr. Andrew Warne, the man who designed the program that runs the park's robots, is called in to help fix a problem. But when he gets there, he finds out that the park is being held hostage by a mysterious man known as John Doe.
Document 5: Gathering Blue: Gathering Blue is a young adult-social science novel, written by Lois Lowry and released in the year 2000. It is a companion book to "The Giver" (1993) being set in the same future time period and universe, treating some of the same themes, and is followed by "Messenger" (2004), and "Son" (2012) in "The Giver Quartet".
Document 6: Son (novel): Son is the final entry in "The Giver Quartet" by Lois Lowry. It was preceded by "Messenger", the third book of the series. The book follows Claire, the mother of Gabriel, the baby seen in "The Giver".
Document 7: The Giver: The Giver is a 1993 American young adult dystopian novel by Lois Lowry. It is set in a society which at first appears to be utopian but is revealed to be dystopian as the story progresses. The novel follows a 12-year-old boy named Jonas. The society has eliminated pain and strife by converting to "Sameness", a plan that has also eradicated emotional depth from their lives. Jonas is selected to inherit the position of Receiver of Memory, the person who stores all the past memories of the time before Sameness, as there may be times where one must draw upon the wisdom gained from history to aid the community's decision making. Jonas struggles with concepts of all the new emotions and things introduced to him: whether they are inherently good, evil, or in between, and whether it is even possible to have one without the other. The Community lacks any color, memory, climate, or terrain, all in an effort to preserve structure, order, and a true sense of equality beyond personal individuality.
Document 8: Ishmael (novel): Ishmael is a 1992 philosophical novel by Daniel Quinn. It examines the mythological thinking at the heart of modern civilization, its effect on ethics, and how this relates to sustainability and societal collapse on the global scale. The novel uses a style of Socratic dialogue to deconstruct the notion that humans are the pinnacle of biological evolution. It posits that anthropocentrism and several other widely accepted modern ideas are actually cultural myths and that global civilization is enacting these myths with catastrophic consequences. The novel was awarded the $500,000 Turner Tomorrow Fellowship Award in 1991, a year before its formal publication.
Document 9: The Ones Who Walk Away from Omelas: "The Ones Who Walk Away from Omelas" is a 1973 plotless, short, descriptive work of philosophical fiction, though popularly classified as a short story, by American writer Ursula K. Le Guin. With deliberately both vague and vivid descriptions, the narrator depicts a summer festival in the utopian city of Omelas, whose prosperity depends on the perpetual misery of a single child.
Document 10: Messenger (novel): Messenger is a 2004 young adult fiction by author Lois Lowry. It forms the third installment of "The Giver Quartet" begun by her 1993 Newbery Medal-winning novel "The Giver". This novel takes place about eight years after the events of "The Giver", and about six years after the events of "Gathering Blue". Characters from the two earlier books reappear in "Messenger," connecting the novels more strongly. Set in an isolated community known simply as Village, this novel focuses upon a boy named Matty, who serves as message-bearer through the ominous Forest that surrounds the community.
Document 11: The Hunger Games (novel): The Hunger Games is a 2008 dystopian novel by the American writer Suzanne Collins. It is written in the voice of 16-year-old Katniss Everdeen, who lives in the future, post-apocalyptic nation of Panem in North America. The Capitol, a highly advanced metropolis, exercises political control over the rest of the nation. The Hunger Games is an annual event in which one boy and one girl aged 12–18 from each of the twelve districts surrounding the Capitol are selected by lottery to compete in a televised battle to the death.
Document 12: The Giver Quartet: The Giver Quartet is a series of four young adult novels by Lois Lowry. The quartet consists of "The Giver" (1993), "Gathering Blue" (2000), "Messenger" (2004) and "Son" (2012). The first book won the 1994 Newbery Medal and has sold more than 10 million copies. The story takes place in the world of the Giver. Each book has a different protagonist, but is set in the same futuristic era.
Document 13: The Hunger Games (novel): The Hunger Games is a 2008 dystopian novel by the American writer Suzanne Collins. It is written in the voice of 16-year-old Katniss Everdeen, who lives in the future, post-apocalyptic nation of Panem in North America. The Capitol, a highly advanced metropolis, exercises political control over the rest of the nation. The Hunger Games is an annual event in which one boy and one girl aged 12–18 from each of the twelve districts surrounding the Capitol are selected by lottery to compete in a televised battle to the death.
Document 14: The Solution (novel): The Solution is the 22nd book in the Animorphs series, written by K.A. Applegate. It is narrated by Rachel. It is the last book in the David trilogy.
Document 15: The Unknown (novel): The Unknown is the 14th book in the Animorphs series, written by K.A. Applegate. It is narrated by Cassie. The front cover quote is, "Never underestimate the power of a morph...". All books after "The Unknown" were dedicated to Applegate's son, Jake, as well as her husband and co-writer, Michael.
ground_truth: Son