For Mary herself, however, it was different. Like so many people who manufacture continual unhappiness for themselves, she had a frantic craving for happiness, and an irrational conviction that happiness was her due.

She told me herself, long afterwards, that she never had any thought of infidelity towards my father, nor did she ever meet any man who could or would have caused her to break her marriage vows. But—and this she didn’t tell me, it’s part of the reconstruction—she was constantly obsessed by a vague and romantic expectation of some such encounter. I imagine that she could not believe the world to have been created without a special application to her yearnings.

And then undoubtedly the nervous wear and tear that she imposed upon herself, and upon us all, told on her spirits. Her scenes with grandmother, although they may have served as a safety-valve, were too frequent. They may also have served to throw into painful contrast her husband’s stolid opposition to any form of emotional stimulus.

However that may be, grandmother had formed part of our household for rather less than a year, when Mary suddenly ran away.

It was, I suppose, the only dramatic thing that she could think of, in a wet and dreary February, and I have no doubt at all that she did it on impulse. That is to say, she gave herself time to write an immensely long letter to my father—in which perhaps she set forth that view of herself which he never gave her adequate opportunity for putting into words—but she gave herself no time to pack up her things. She simply took her dressing-case, and I am sure that that was mostly filled with photographs in folding frames, and packets of letters tied up with ribbon, and little manuals of devotion heavily underscored in several places.

Then she walked out of the house, and to the station, and eventually got to Assisi. And they traced her there almost at once, partly because she took no pains to cover up her tracks, and partly because my grandmother—who understood the processes of her mind—found a copy of a Life of St. Francis on the drawing-room sofa, face downwards, with one page all blistered, as though tears had fallen upon it.

My father, for his part, found the long letter that no doubt told him how little he had understood a sensitive nature, and possibly to what point their life together had become intolerable.

And this had the strange effect of making him resolve, and declare aloud, that nothing would induce him to try and get her back again. There must have been a stormy scene between him and my grandmother, who had all the conventionally moral instincts of her day, and was genuinely shocked and disturbed at her daughter’s abrupt and violent casting off of her obvious responsibilities.

“For the child’s sake, at least, Robert ...” she must have repeated many times.

(Neither she nor my mother ever understood the futility of repeating, again and again, words which had already failed of their appeal.)