Seaweed scare

The seaweed scare is the most elaborately staged psychological trap on Indian Island, a moment when the murderer weaponized memory, sensory association, and the house's own modern emptiness to drive a victim to the edge of madness. It occurs on the night of August 10th, after the deaths of Anthony Marston, Mrs. Rogers, General Macarthur, and Rogers himself have reduced the party to five: Vera Claythorne, Philip Lombard, Dr. Armstrong, William Blore, and the judge, Lawrence Wargrave. The storm that had isolated the island all day has not yet broken, and the house, flooded with electric light and devoid of dark corners, has become the most frightening place of all—its very modernity offering no concealment and therefore no reassurance. Vera, whose nerves have been stretched thin by the day's horrors, decides to go to her room to bathe her aching head and temples in cold water. She lights a candle from the box in the drawing-room, lets a little wax pour into a saucer, and sticks the candle firmly to it before climbing the stairs alone, leaving the four men behind.

The Sensory Ambush

As Vera opens her bedroom door, she halts, stock-stiff. Her nostrils quiver. The smell of the sea at St. Tredennick—the beach where she had let Cyril Hamilton drown—floods her senses. On an island one naturally smells the sea, but this is different: it is the precise odor of that day, with the tide out and the rocks covered with seaweed drying in the sun. The memory is instantaneous and overwhelming. She hears Cyril's whiny voice: "Can I swim out to the island, Miss Claythorne?" and "Why can't I swim out to the island?" The thought that if it were not for him, Hugo would be rich and able to marry the girl he loved rises unbidden. She feels Hugo's presence so strongly that she believes he is beside her, waiting for her in the room. She takes a step forward. The draught from the window catches the flame of her candle; it flickers and goes out. In the dark, she is suddenly afraid. She urges herself not to be a fool—the others are downstairs, all four of them, there can be no one in the room—but the smell of the beach at St. Tredennick is not imagined. It is true. And then she hears something: a sound, surely, in the room. As she stands listening, a cold, clammy hand touches her throat—a wet hand, smelling of the sea.

The Hysterical Collapse

Vera screams. She screams and screams, wild desperate cries of the utmost terror. She does not hear the sounds from below—a chair overturned, a door opening, men's feet running up the stairs. She is conscious only of supreme terror. Then lights flicker in the doorway: candles, and men hurrying into the room. She shudders, takes a step forward, and collapses on the floor. She is only half aware of someone bending over her, forcing her head down between her knees. Then a quick exclamation—"My God, look at that!"—brings her senses back. She opens her eyes and raises her head. She sees what the men with the candles are looking at: a broad ribbon of wet seaweed hanging down from the ceiling. It was that which, in the darkness, had swayed against her throat. It was that which she had taken for a clammy hand, a drowned hand come back from the dead to squeeze the life out of her. She begins to laugh hysterically. "It was seaweed—only seaweed—and that's what the smell was." Then the faintness comes over her once more, waves upon waves of sickness. Again someone takes her head and forces it between her knees.

The Aftermath and the Trap

Aeons of time seem to pass. Someone offers her brandy, pressing the glass against her lips. She is just about to gulp it down when a warning note—like an alarm bell—sounds in her brain. She sits up, pushing the glass away. "Where did this come from?" Blore's voice answers: "I got it from downstairs." Vera cries, "I won't drink it." Lombard laughs with appreciation: "Good for you, Vera! You've got your wits about you—even if you have been scared half out of your life. I'll get a fresh bottle that hasn't been opened." He goes swiftly out. Vera says uncertainly that she is all right now and will have some water. Armstrong supports her as she struggles to her feet; she goes over to the basin, swaying and clutching at him for support, lets the cold tap run, and fills the glass. Blore resents the implication that he might have tampered with the brandy, but Armstrong points out that someone might have tampered with the bottle for just this emergency. Lombard returns with a new sealed bottle of brandy and a corkscrew, thrusts it under Vera's nose, peels off the tin foil, and draws the cork. "Absolutely no deception." Armstrong holds the glass while Philip pours the brandy; Vera drinks a little, and the color returns to her face. Lombard says with a laugh, "Well, here's one murder that hasn't gone according to plan!" Vera asks, almost in a whisper, if that was what was meant. Lombard nods: the murderer expected her to pass out from fright. Armstrong, dipping a finger into the glass Blore had brought and tasting it gingerly, says dubiously that it tastes all right. Blore steps forward angrily, threatening to knock Armstrong's block off if he is saying the brandy was tampered with.

The Disappearance of the Judge

Vera, her wits revived by the brandy, makes a diversion by asking, "Where's the judge?" The three men look at each other. It is odd: they all thought he had come up with them. Blore says he thought the judge was following him; Armstrong says he thought the judge was following him. Lombard says it is damned odd. Blore cries that they must look for him and starts for the door. The others follow, Vera last. As they go down the stairs, Armstrong calls out loudly, "Wargrave, Wargrave, where are you?" There is no answer. A deadly silence fills the house apart from the gentle patter of the rain. Then, in the entrance to the drawing-room door, Armstrong stops dead. The others crowd up and look over his shoulder. Someone cries out. Mr. Justice Wargrave is sitting in his high-backed chair at the end of the room, two candles burning on either side of him. But what shocks and startles the onlookers is that he sits there robed in scarlet with a judge's wig upon his head. Dr. Armstrong motions to the others to keep back. He himself walks across to the silent staring figure, reeling a little as he walks like a drunken man. He bends forward, peering into the still face. Then, with a swift movement, he raises the wig. It falls to the floor, revealing the high bald forehead with, in the very middle, a round stained mark from which something has trickled. Dr. Armstrong raises the limp hand and feels for the pulse. Then he turns to the others. "He's been shot," he says, his voice expressionless, dead, far away. Blore says, "God—the revolver!" The doctor says, still in the same lifeless voice, "Got him through the head. Instantaneous." Vera stoops to the wig. "Miss Brent's missing grey wool," she says, her voice shaking with horror. Blore says, "And the scarlet curtain that was missing from the bathroom." Vera whispers, "So this is what they wanted them for." Suddenly Philip Lombard laughs—a high unnatural laugh. "'Five little Indian boys going in for law; one got in Chancery and then there were four.' That's the end of Mr. Bloody Justice Wargrave. No more pronouncing sentence for him! No more putting on of the black cap! Here's the last time he'll ever sit in court! No more summing up and sending innocent men to death. How Edward Seton would laugh if he were here! God, how he'd laugh!" His outburst shocks and startles the others. Vera cries that only this morning he had said the judge was the one. Philip Lombard's face changes, sobers. "I know I did. Well, I was wrong. Here's one more of us who's been proved innocent—too late!"

Thematic Significance

The seaweed scare is the turning point of the novel's final act. It is the moment when the murderer's psychological warfare reaches its peak, exploiting Vera's deepest guilt and her most traumatic memory to create a terror so absolute that it nearly kills her without a single physical blow. The scare also serves as the perfect diversion for the judge's fake death: while everyone rushes upstairs to Vera's screams, Wargrave takes his pose as the next victim, robed in the missing scarlet curtain and crowned with the grey wool. The episode demonstrates the murderer's intimate knowledge of each victim's psyche and his willingness to use the island's isolation and the house's modern, unshadowed emptiness as a stage for a horror that is all the more terrifying for being invisible. Vera's refusal to drink the brandy offered by Blore shows that even in her shattered state, her survival instinct remains sharp—but it is a sharpness that will ultimately be turned against her when she faces the final, inescapable trap in her own bedroom.