The "Iron Fey" series, written by Julie Kagawa, is a young adult fantasy collection that explores the world of the fey, or fairies. The story follows a teenage girl named Meghan Chase, who discovers her connection to the fey realm and her role in a conflict between the traditional fey and the new, industrialized Iron Fey. The series combines elements of adventure, romance, and magic, as Meghan navigates her journey through the Nevernever, a mystical land filled with various creatures and challenges. Key characters include Ash, a prince of the Winter Court, and Puck, a mischievous faerie, who help Meghan in her quest.