Daisy's Aunt by E.F. Benson

Easter fell late next year, but spring had come early, and had behaved with unusual sweetness and constancy, for from the middle of March to mid-April there had been a series of days from which winter had definitely departed. In most years April produces two or three west-wind days of enervating and languorous heat, but then recollects itself and peppers the confiding Englishman with hail and snow, blown as out of a pea-shooter from the northeast, just to remind him that if he thinks that summer is going to begin just yet he is woefully mistaken. But this year the succession of warm days had been so uninterrupted that Lady Nottingham had made the prodigious experiment of asking a few people down to Bray for a week-end party at Easter itself.

She was conscious of her amazing temerity, for she knew well that anything might happen; that the river, instead of being at the bottom of the garden, might so change its mind about their relative positions that in a few hours the garden would be at the bottom of the river, or, again, this bungalow of a house might be riddled and pierced with arctic blasts.