Jill Criswell is an author known for writing fantasy literature, particularly young adult (YA) fiction. Her works often include elements of romance, magic, and adventure, crafted within intricately built fantasy worlds. One of her notable series is the "Frozen Sun Saga," which includes the titles "Beasts of the Frozen Sun," "Kingdom of Ice and Bone," and "Curse of the Dark Prince." Criswell is recognized for her strong character development, rich world-building, and weaving of mythological themes into her narratives. She has been praised for her engaging storytelling that captivates young readers and adult fans of fantasy alike.