The hammerhead shark attack on deep-sea divers off La Palma turns a hazardous underwater operation into evidence of organized resistance. At a scaffold on the volcanic flank, Gerhard Bohrmann and Stanley Frost first encounter a blue glow and approaching shark-like forms. The attack leaves Frost dead and Bohrmann trapped underwater; the predators’ subsequent destruction of the floodlights points beyond ordinary animal behavior to an intelligent effort to stop the divers from removing the worms.

The scaffold and the first warning

The divers are working beside a scaffold in deep water as part of the effort to clean up the worms. Their surroundings make distance difficult to judge: underwater refraction makes objects appear closer and larger, while the scaffold’s lights complicate the view. A blue-violet halo forms around the structure, apparently coming from farther away than the lighting unit. The glow fades, but the encounter does not end with it. Frost spots two long shadows moving over the frame, their blue undersides briefly visible before they disappear.

Bohrmann wants to return. Frost instead tells him not to act hastily and indicates that they have company. Two torpedo-shaped creatures then emerge from behind the scaffold and rush toward the divers. Bohrmann reacts with fear and retreats, shielding his helmet. Frost remains confident: he says the PODs have been tested and should work. That confidence, and the initial appearance of only two attackers, makes the encounter seem containable. The arrival of a much larger predator overturns that expectation.

The attack and Bohrmann’s escape

A hammerhead charges Frost near the scaffold. It attacks his exosuit and leaves him fatally injured. The two smaller sharks join the assault, while Bohrmann watches from nearby. Their behavior briefly resembles feeding, but he recognizes that this does not account for the full danger: the creatures’ instincts may be manipulated, and their actions remain directed at killing the human intruders. The distinction matters. The scene presents natural predation as the visible form of a threat that may also be controlled.

Bohrmann has to decide how to escape while under attack. He reaches for the console, knowing that a wrong control could activate a homing program and send him toward the Heerema, a move he believes would cost him his life without the PODs’ protection. He selects the correct control and uses the trackhound to move away from the scaffold and toward the lava flank. The robot carries him slowly, and he continues toward the rock, which offers a possible refuge.

The largest shark then attacks Bohrmann as well, striking him and forcing him against the flank. He manages to reach a crevice and push himself inside. His exosuit and oxygen tanks make the narrow space difficult to enter, but the shark’s head is too large to follow him into the crack. The shelter buys him time; it does not make him safe. He cannot see clearly through the disturbed water, and he expects the predators to return. The attack has separated him from Frost and left him dependent on communication with the surface team.

A rescue postponed

Jan van Maarten offers to send robots and two divers in suits to retrieve Bohrmann. Bohrmann refuses the immediate rescue plan. He has seen what happened to Frost and says the PODs do not work against the attackers. He also warns that the sharks and the substance in their heads are intelligent, making a small rescue team and a decoy inadequate. He estimates that he has enough oxygen for two days, so the team can wait rather than send more divers into a situation they do not understand.

The danger soon appears to have multiplied. Van Maarten reports that dozens, perhaps hundreds, of creatures are smashing the floodlights. Bohrmann interprets this as purposeful: the lights are being destroyed to prevent the team from cleaning up the worms. The attackers are therefore not merely threatening individual divers. Their actions obstruct the operation itself, extending the danger from the scaffold to the equipment on which the work depends.

Significance of the encounter

The sequence moves from an unexplained blue halo, to a pair of charging creatures, to a fatal attack and a wider assault on the site’s lights. Each stage revises what the divers can safely assume. The PODs have been tested, the crew has protective suits, and the rock crevice offers temporary shelter, yet none of these safeguards answers the central problem: the predators behave as if their actions serve a purpose beyond immediate feeding. Bohrmann’s assessment links the threat to the worms and to the attempt to remove them.

The attack thus becomes a turning point in the La Palma operation. Frost’s death establishes its human cost, while Bohrmann’s escape preserves a witness who can warn the team not to proceed as though they faced ordinary sharks. The smashed floodlights provide the clearest indication that the opposition is directed at the cleanup effort. What began as a dangerous dive becomes a confrontation with an intelligent presence capable of exploiting animals and disabling the conditions of human work underwater.