Lord Dunsany 
The Relenting of Sarnidac 

And the Book of the Knowledge of the gods tells further how the day on which Pompeides found the gods shall be kept for ever as a fast until the evening and called the Fast of the Departing, but in the evening shall a feast be held which is named the Feast of the Relenting, for on that evening Sarnidac pitied the whole world and tarried.