Operation: Peril #6

John Colter pushes himself to the limit as a member of an early American expedition, earning distinction among his fellow adventurers—but his success draws the focused hatred of the Blackfeet, who vow vengeance for the lives he's taken. As Colter travels deeper into dangerous territory, the tribe closes in, setting the stage for a deadly pursuit. This 1951 account captures the perilous frontier encounters that tested the courage of exploration's boldest pioneers.

When Detective Danny Danger's old acquaintance Tex Moore mysteriously slips him a silver cigarette case on a crowded street, he's pulled into a dangerous game he doesn't yet understand—one that ends with Tex dead in a hotel room and Danny holding a cryptic note pointing him toward a man named Karl Schmidt. As Danny races to uncover why this seemingly worthless trinket is worth killing for, he'll navigate a maze of murderous hoods, a beautiful woman with secrets of her own, and the relentless attention of Inspector Gravel, all while the cigarette case itself holds a mystery that could explain everything.