Infant remains found at Arizkun Church

The Infant remains found at Arizkun Church are both a forensic discovery and a charged object of local belief: the bones are identified as those of a newborn from roughly 150 years earlier, and Jonan Etxaide recognizes them as a possible mairu-beso. Their DNA unexpectedly links them to Amaia Salazar, turning the church desecration into a personal investigation while leaving a crucial distinction between an ancient ancestor and the secret of Amaia’s own twin birth.

Discovery and Forensic Profile

The remains emerge in the aftermath of the desecration of Arizkun Church, among burned bones that prompt Jonan Etxaide to identify the find as a mairu-beso. The term refers here to an infant’s arm bone, but the identification is more than a label: the traditional object is defined by the circumstances of the child’s death and baptism. That context makes the church discovery relevant not only to the damage and disturbance at the site but also to the handling of the dead beyond its walls.

Testing establishes a concrete profile. The bones are well preserved despite having been burned at one end, and the forensic examination identifies them as belonging to a male child who was either about nine months in the womb or about one month old. The estimated age of the remains is approximately 150 years, with a margin of error of five years. These findings support the interpretation that the bones came from a newborn, while fixing their origin far in the past rather than in Amaia’s generation.

The distinction matters when Amaia later finds records of a twin birth in 1980. The church remains are ancient and identified as male; they therefore cannot simply be equated with the newborn girl whose death is concealed in that later family history. Their significance is instead genealogical: the forensic results connect an old infant’s remains to Amaia’s family line, while the records raise a separate, unresolved question about what happened to her twin sister.

Mairu-beso and Local Belief

Jonan explains that a mairu-beso had to come from an infant who died without baptism. In the belief he describes, the bone’s supposed magical properties depended on the child’s status and age: the child had to be a fetus, stillborn, or dead at birth or during the first months of life. An adult’s arm could not serve the same purpose, even if that adult had not been baptized. The distinction places the object at a boundary between birth and death, and between religious inclusion and exclusion.

The lore also gives the remains a domestic meaning. Unbaptized infants were believed to remain between worlds, unable to enter heaven or hell or return to the limbo from which they had come. Instead, they could stay in their parents’ home as protective presences. Some families were said to preserve a dead child’s cradle or give the child a place at the table, even setting out food. They avoided giving a new sibling the dead child’s clothes or name for fear that the original owner would claim them and bring the sibling to death. Treated respectfully, however, the mairu was thought to bring joy and play with its brothers and sisters; young children, believed to share a temporary passage between worlds, might see it.

The account of the bone as a protective household presence sits uneasily beside its recovery in a desecrated church. Jonan also describes the old belief that a mairu-beso could be carried like a torch, with smoke supposedly able to put a house or even a whole village to sleep while its bearers committed witchlike misdeeds. These are reported folk beliefs, not forensic findings. Their importance is that they supply a cultural vocabulary for interpreting an infant’s remains removed from a burial context and used as an object.

DNA and the Family Record

The unexpected turn comes from routine DNA testing. Although the infant’s own profile cannot be expected to appear in a modern database, the laboratory finds a 25 percent match with Amaia, indicating a relative rather than a direct match to her. The police commissioner orders the result checked discreetly and repeated after the first tests at Nasertic. Further testing in Zaragoza and San Sebastián produces the same result. The repeated matches turn a surprising laboratory result into a verified family connection: the child was an ancestor of Amaia, estimated to be four or five generations removed.

That result prompts Amaia to seek access to family medical records and investigate the circumstances of her own birth. The obstetric file lists a natural birth in 1973, when Flora Salazar was born, another in 1975, when Rosaura Salazar was born, and then a natural twin birth in 1980. The two girls are described as apparently healthy, but no names are recorded. The omission gives the file its force: it confirms a twin delivery without documenting the identities or subsequent fate of both children.

A separate death certificate deepens the discrepancy. It records a newborn daughter of Juan Salazar and Rosario Iturzaeta and gives the cause of death as cot death, a common term for sudden infant death syndrome. Relatives recall that the child died, but the coffin was closed and they did not see the body. Amaia notes that her mother concealed the birth from the family, that the birth certificate contains irregularities, and that the remains found at the church have drawn suspicion to the circumstances of the birth and death. The documents and recollections raise questions; they do not make the ancient bones the body of the 1980 twin.

Evidence, History, and Significance

The investigation’s strength lies in keeping kinds of evidence distinct. The bones provide an estimated age, sex, and antiquity; the DNA establishes a family relationship; the birth and death records document a later twin delivery and a newborn’s recorded death; family testimony is limited by the closed coffin and the fact that relatives did not know of the birth. Together these fragments expose a concealed history, but they do not erase the differences between the ancient remains and the infant named in the later records.

The church setting carries another historical charge. Jonan recounts competing theories about the origins of the agotes, a group associated with Bozate in the Baztán region, and describes centuries of restrictions: they were barred from living outside Bozate, running businesses, or marrying outsiders, and were required to wear identifying marks and announce their presence with a bell. Despite being Christians who observed Catholic rites, they faced separate baptismal arrangements, exclusion from the altar, and physical separation inside churches. At Arizkun, a barrier once divided them from other worshippers; its removal is described as a rejection of the shame attached to that history. This record of religious exclusion gives the desecrated church a history of its own, though it does not establish who placed the infant bones there or why.

The remains consequently occupy two registers without collapsing into one another. As evidence, they are an ancient male newborn’s bones, linked by DNA to Amaia’s ancestry. As a mairu-beso, they carry a folk account of the unbaptized child’s passage between worlds and imagined role within the home. As the trigger for Amaia’s archival search, they lead toward a second mystery: a 1980 twin birth omitted from the family’s shared knowledge and accompanied by an imperfect paper trail. Their decisive narrative significance rests in that distinction: the bones do not solve the later infant’s death, but they make ancestry, burial, and the silences of family records impossible for Amaia to treat as separate questions.