A Girl of High Adventure by L.T. Meade

Margot had been brought up by severe and much-detested Aunt Priscilla, and by that dearly loved and holy man, Uncle Jacko, to dread a lie beyond anything in the world. Aunt Priscilla scolded her and told her of the awful fate of little girls who told lies. Uncle Jacko pursued a far gentler and more effective way.

Uncle Jacko's way prevailed. He talked of the holy children who lived in the New Jerusalem. He talked of the smiling Christ, and God, the Father, and of the Holy Spirit, who entered into the heart of the child who tried to be good. He talked very beautifully and little Margot thought _him_ very beautiful when he did talk on this subject, and never up to the present moment had she broken her solemn word to Uncle Jacko that she would at all costs and under every circumstance keep to the truth. Nevertheless, here was she now, having broken that solemn word, having made _cher_ grandpère St. Juste imagine that the _établissement_ was kept by Madame Marcelle and that _la belle_ grand'mère had nothing whatever to do with it.