The "Will Treaty Series" is a collection of fantasy novels written by author Rhiannon Williams. It follows the adventures of Will Treaty, a skilled ranger in the fictional world of The Ranger's Apprentice. The series explores themes of friendship, loyalty, and the challenges of growing up in a medieval-like setting. Set in the same universe as the original Ranger's Apprentice series, the "Will Treaty Series" delves deeper into Will's life as he takes on new responsibilities and faces various threats. The books are aimed at young readers and emphasize the importance of courage and perseverance in overcoming obstacles.