The Shadow #140

When The Shadow arrives home from the St. Paul's Club, he finds Professor Blandish dead—his forehead marked with the sign of Mercury. The murder ties back to a mysterious 1937 expedition to study the planet, and as The Shadow digs into the past, he uncovers a web of secrets that still burn in the present. With Doctor Keen and Professor Wilkins caught in the mystery, the case becomes a race against time where every clue leads deeper into the shadows of forgotten science.

When a murdered playboy's name surfaces on the radio, The Shadow—disguised as Jimmy Gray—follows the trail to the Black Orchid Club, a shadowy hotspot rumored to harbor secrets. With Sleek and Mugsy in tow, he dives into the club's underworld, only to find himself swept into the river, where danger runs deeper than the current.