Jack Sawyer is a fictional character created by author Stephen King. He is the protagonist in the novel The Talisman, which was co-written with Peter Straub. Jack is a young boy who embarks on a quest to save his dying mother, traveling between his world and a parallel universe known as The Territories. In The Territories, Jack discovers he has special abilities and encounters various fantastical creatures. His journey is filled with challenges as he seeks the Talisman, a powerful object that can heal his mother. Jack's character represents courage, determination, and the struggle between good and evil.