The balance of forces

The balance of forces is Engrasi’s explanation for why Basajaun, understood as a guardian of the proportion between life and death, may be showing himself in the forest. In her account, the killings and desecrations in the valley are not isolated horrors: they amount to an offense against an order binding life, death, and the places governed by unseen powers. The concept gives Amaia Salazar a way to connect the cases, but also warns that their full cause may reach beyond the crimes she has already investigated.

Engrasi’s interpretation

Engrasi says she has read extensively about Basajaun and interprets him as the forest’s guardian, responsible for preserving the balance between life and death. She proposes that the appearance is part of a counterweight system: an offense of sufficient magnitude has broken an important equilibrium and compelled the guardian to manifest. This is her considered reading of the myth, not proof that the supernatural explanation is true.

She points to the unnatural deaths of the girls killed the previous year, the monster who had induced murders over many years and left victims’ remains in the valley, and the danger that nearly befell Ibai. Together, these acts make the disturbance more than an abstract imbalance. The image of a killer scattering bodies through the mountains and the river is especially potent because those places belong to the forces whose order has allegedly been violated.

The river and the unresolved offense

The river becomes the concentrated image of that breach. When Amaia and Engrasi repeat the word, Amaia remembers the Lamias’ injunction, “Limpia el río, lava la ofensa.” The phrase joins physical pollution to moral injury: cleansing the river is also framed as answering an offense. It does not, however, identify what the offense is or establish that the river’s condition alone explains the apparitions.

Amaia argues that a mythic creature appearing in the forest is exceptional. Either those involved are under the influence of some hallucination-producing plant, or there is a reason for the manifestations—something still active and extending beyond the earlier murders. Her list of continuing anomalies includes the girls of the river, remains in Cueva de Arri Zahar, bones of the mairus burning on a church altar, and the dark entanglement of babies and sudden death with a frightening being from local mythology. The balance-of-forces idea therefore expands the inquiry: past crimes may be part of the explanation without exhausting it.

Sacrifice, awakening, and the danger of inquiry

Engrasi compares the possibility of returning lesser powers with accounts of gods who required repeated sacrifices and offerings to remain active. She invokes the biblical story of the statue of Dagon found fallen before the Ark of the Covenant, and Robert Graves’s account that lesser gods withdrew to sleep when Jesus was born. This comparison supplies a pattern for the valley’s mystery: a power may lie dormant until someone or something wakes it.

From that premise, Engrasi reasons that if someone has brought the guardian back, an extraordinary aberration—an offering to evil of exceptional magnitude—may have been required. The profanations, the violation of Amaia’s family itxusuria, the many stones on the mesa roca, and the empty grave of Amaia’s twin sister gather in her mind alongside the sight of Esparza’s little girl’s dark-haired head protruding from a backpack in the rain. She also recalls the account of Inguma awakening in 1440 because someone wanted it awakened, after which it continued its taking of lives until its thirst was sated. These images give the theory its terrible stakes: restoring a balance may demand a response to a prior, deliberate violation.

Engrasi is afraid of where Amaia’s search may lead and of the doors it may open. Amaia, in turn, says she cannot withdraw while the anomalies continue to clamor through the valley. The concept thus operates both as an interpretive frame and as a warning: if the apparent manifestations answer a profound disruption, uncovering its source may expose Amaia to consequences that ordinary casework cannot contain.