Columbia subject headings:
Darius I, King of Persia, 548 B.C.-485 B.C.--Fiction.
Iran--History--Fiction.
Harvard subject headings:
Darius I, King of Persia, 548 B.C.-485 B.C.--Fiction.
Scythia--History--Fiction.
Princeton subject headings:
Darius I, King of Persia, 548-485 B.C.--Fiction.
Fiction.
Scythia--History--Fiction.