Cover art
Zelazny, Roger Roadmarks. Ballantine/Del Rey 1981.

Zelazny, Roger. Roadmarks
Divergence: 490 BCE
Summary: On a strange road that reaches from past to future, a man fights assassins and attempts to prevent a Greek defeat at Marathon.
Published: Ballantine/Del Rey 1979 (0345285301w88 android), 1981 (0345253884), 1994 (0345345150).
Original in: English.
Translation: French by Alain Dorémieux as Repègres sur la route, Denoël 1981 (2207303241).
Translation: Italian as Strada senza fine, Mondadori 1980, Associati 1994 (8878194913).