428, [10] pp. 8vo. Red cloth, black titles. Frontispiece and three plates by J. Allen St. John. The eighth in the Tarzan series, originally serialized as two separate stories (Tarzan and the Huns & Tarzan and the Valley of Luna) in Redbook and All-Story Weekly. "A vengeful Tarzan unleashes his jungle cunning against the Germans in Africa during World War I."
