"The Ascendance Trilogy" is a young adult fantasy series written by Jennifer A. Nielsen. It follows the story of a young orphan named Sage who is thrust into a dangerous game of deception and power when he is chosen to impersonate a missing prince. Throughout the trilogy, Sage navigates political intrigue, battles against enemies, and uncovers secrets about his own identity. The series consists of three books: The False Prince, The Runaway King, and The Shadow Throne. Each installment builds on Sage's journey as he faces challenges that test his courage, loyalty, and cleverness. The trilogy is known for its engaging plot, well-developed characters, and themes of friendship and resilience.