Following the death of the captain, the narrator and his mother find themselves in a precarious situation. Realizing that the captain's "terrible shipmates" would soon return to claim the chest, they are driven by a sense of impending doom, "haunted by visions in the mist." Their attempt to seek help in the nearest town proves to be a futile endeavor. Despite their urgent pleas, the townspeople are paralyzed by fear at the mere mention of "Captain Flint." The locals refuse to provide physical protection for the inn, offering only a "loaded pistol" and a vague promise of horses. This rejection forces the pair to return to the Admiral Benbow alone, facing a "dark, moonless night" and the chilling presence of the captain's "dead body."
Upon returning to the inn, the narrator discovers the "crumpled paper" clutched in the captain's hand, bearing the ominous warning: "You have till ten." This discovery adds a ticking clock to their survival. After searching his pockets and finding only a "pocket knife and compass," they finally locate the key hanging on a string around the captain's neck. Inside the "old, battered chest," they find a collection of "carefully cleaned, unworn clothing, pistols, silver, and trinkets from faraway lands." Beneath these items lie the mysterious "parchment scrolls" and a "sack of gold."
As the mother begins to count out exactly what is "owed us," the tension escalates. The narrator suddenly hears the "tapping of the blind man's cane" approaching the inn. The antagonist attempts to force his way inside, "pulling at the lock of the door." Although the blind man eventually retreats into the night, the reprieve is short-lived. A sudden "whistle from the street" signals that the danger is not over but merely shifting. Realizing the gravity of their situation, the mother decides to abandon her moral stance of taking only what is owed, opting instead to take the money she has gathered along with a "bundle of old papers to make it even."
The escape is frantic and perfectly timed. As they sprint into the street, the "mist began to disappear," revealing that they were "not a moment too soon." Had they stayed, the rising moon would have left them "exposed." Pursued by the encroaching voices of the captain's former associates, the mother begins to succumb to the stress, declaring, "I'm going to faint." The narrative reaches a cliffhanger as the narrator drags his mother to safety "under the low bridge by the Admiral Benbow," crouching low as the enemy closes in. This harrowing sequence underscores the transition from a quiet life at the inn to a high-stakes flight for survival, driven by the contents of the mysterious sea chest.