Antiquitas Lost: The Last of the Shamalans is the debut novel of American author Robert Louis Smith. It is a fantasy novel that chronicles the adventures of an American teenage boy after he stumbles through a magical doorway in his grandfather's basement, and into a war-torn fantasy world called Pangrelor. The main story arc involves the protagonist's gradual discovery of his unknown relation to Pangrelor, and his unlikely quest to help save its greatest civilization, which is centered on the mountaintop city of Harwelden. Several times during the story, the protagonist is told that success in saving this fabled city of Harwelden may help to save his own dying mother, who remains isolated from him and terminally ill in New Orleans.