In the story "The Lion Gate," a daring archaeological expedition unfolds against the rugged backdrop of the Northwestern Border, near the Khyber Pass. The tale features a group led by Professor Berwick, a scholar of archaeology driven by a discovery related to ancient Cretan civilizations. Berwick, along with his niece Alice, his assistant John Ammiston, the rugged guide O'Brien, and Ali Khan, embark on a perilous journey to uncover a mythical city rumored to be founded by ancient Cretans.

The narrative hints at a piece of parchment that Professor Berwick deciphered, detailing an ancient voyage by Cretan refugees who escaped their collapsing empire. These refugees sailed eastward, encountering various challenges and eventually claiming to have settled in a hidden city among the Himalayas, marked by a Lion Gate similar to those in Crete.

Their journey is fraught with skepticism and danger, navigating through treacherous territories inhabited by fierce tribes and landscapes where no white man has reportedly set foot before. The group's dynamics are strained under the risks of their endeavor, with the added complication of Alice's presence in such a hostile environment.