"The Last Thirteen" is a series of young adult novels written by James Phelan. The story follows a group of thirteen teenagers who are connected by a shared dream about a mysterious prophecy. As they navigate their individual challenges, they discover that they must work together to prevent a looming disaster that threatens their world. The series combines elements of adventure, fantasy, and suspense, appealing to readers who enjoy thrilling narratives. Each book reveals more about the characters' backgrounds and the significance of their dreams, ultimately leading to a climactic confrontation with dark forces.