The story opens with the narrator observing the veldt as the sun sets and shadows stretch across the landscape. The scene is set with the sounds of porters and askari preparing for the night and the distant call of a jackal. La Fell, a wandering adventurer with a rich cultural background and fluency in multiple languages, approaches the narrator silently. La Fell is known for his intriguing stories and their past encounters in various exotic locations.

La Fell begins a conversation with the narrator about love, challenging the narrator's scientific and unsentimental view of the subject. The narrator dismisses the idea of unselfish love, considering it merely a glorification of self-love. La Fell, pondering this, begins to recount a story from his recent travels in Albania. Two years prior, La Fell found himself wandering in a desolate part of Albania during midwinter.

Despite warnings from the villagers, he set out alone, eventually getting lost in a snowstorm. After a day of battling the elements, he stumbled upon a half-obscured trail that led him to an ancient castle perched on a crag in a secluded upland valley. The castle, illuminated by moonlight reflecting off the snow, appeared both majestic and eerie. Upon reaching the castle, La Fell knocked on the door and was surprised when it was opened by his old friend, John Fane.

Fane, once a vibrant and enthusiastic man, now seemed changed, displaying a mix of joy and reluctance upon seeing La Fell. He introduced La Fell to his beautiful wife, Fala, who welcomed him warmly, though there was a noticeable tension in the air. As La Fell dined with Fane and his wife, he observed the peculiar dynamics between them. Fane ate ravenously while his wife only sipped wine.

La Fell noticed the absence of servants, which added to the mystery of their isolated life. Fane's demeanor fluctuated between cordiality and a strange, reserved intensity, hinting at an internal struggle. Fane led La Fell to a room in the castle, where La Fell noticed Fane's conflicted behavior and peculiar comments about the past and the castle's antiquity. The next day, Fane and his wife continued to exhibit strange behavior.

Fala showed a keen interest in hearing about the outside world, particularly fascinated by the descriptions of crowds and people. Over the course of several days, La Fell witnessed more oddities, such as Fane's erratic mood swings and Fala's fluctuating vitality. He discovered that their relationship was marked by a peculiar tension, with each implying that the other was the reason they stayed in the castle. The outline at the end of the story fragment provides a roadmap of events and interactions that further delve into the mysterious and strained relationship between Fane and Fala.

It hints at deeper secrets, including a strange incident involving a stranger, the discovery of a locked door, and the eventual uncovering of a darker truth about Fane's actions and the castle's eerie atmosphere.