"Hugh Walpole’s _The Dark Forest_ is the best story yet written about the war that we have read."--_New York Globe_.
The title of _The Green Mirror_ is symbolic. In the drawing-room of the London house of the Trenchards, not far from Westminster Abbey, it represented the past and the present of a great and typical English family.
"Above the wide stone fireplace was a large old gold mirror, a mirror that took into its expanse the whole of the room, so that, standing before it, with your back to the door, you could see everything that happened behind you. The mirror was old, and gave to the view that it embraced some comfortable touch, so that everything within it was soft and still and at rest." Henry Trenchard, gazing into it, saw "the reflection of the room, the green walls, the green carpet, the old faded green place, like moss covering dead ground. Soft, dark, damp.... The people, his family, his many, many relations, his world, he thought, were all inside the mirror--all imbedded in that green, soft, silent inclosure. He saw, stretching from one end of England to the other, in all provincial towns, in neat little houses with neat little gardens, in cathedral cities with their sequestered closes, in villages with the deep green lanes leading up to the rectory gardens, in old country places by the sea, all these people happily, peacefully sunk up to their very necks in the green moss.... His own family passed before him. His grandfather, his great-aunt Sarah, his mother and his father, Aunt Aggie and Aunt Betty, Uncle Tim, Millicent, Katherine."
Katherine embodied the spirit of revolt from the tyranny of family. When Philip Mark, a young Englishman, who has spent the greater part of his life in Russia, and whose experiences have made him more Russian than English, comes wooing in tempestuous fashion, she throws off the yoke of her family and chooses for herself. It is when the ties of family are about to be shattered that Henry Trenchard, in a fit of passion, flings a book at Mark, the invader, who has shaken Katherine’s faith in the family, and, instead of hitting Mark, demolishes the mirror. "There was a tinkle of falling glass, and instantly the whole room seemed to tumble into pieces, the old walls, the old prints and water colors, the green carpet, the solemn bookcases, the large armchairs--and with the room the house, Westminster, Garth, Glebeshire, Trenchard and Trenchard traditions--all represented now by splinters and fragments of glass."