Such is the case with two new memoirs of schizophrenia. There is hardly a shortage of such books, but Mira Bartok and Patrick Cockburn have created mirror-image story arcs, one by the daughter of a schizophrenic mother, the other by the father of a schizophrenic son. Each is a model of narrative restraint, but in combination they combust, conveying the intensely painful experience of this disease in the literary equivalent of quadraphonic sound.

A foreign correspondent for the British press, Patrick Cockburn was on assignment in Afghanistan in the winter of 2002 when his son Henry, 20, was fished fully clothed out of an icy river back home. Henry’s mother had noted “sinister changes” in his behavior for months, but this was the big break, with hallucinatory voices and visions so threatening that the river seemed the best place to hide. He was taken to a mental hospital and since then has never lived unsupervised or entirely free of disease.

The Cockburns are a prominent Irish family of letters — Mr. Cockburn’s brother Alexander is the noted political journalist — and Henry, until his “final decline,” in Mr. Cockburn’s words, fell into the expected mold of verbal, artistically talented British schoolboy.