What was the legend attached to the Castle of Cernogratz in the short story The Wolves Of Cernogratz by Saki?

The legend attached to the castle of

cernogratz was, that, whenever a person of the family of cernogratz

dies in the castle of cernogratz wolves in number of thousands and

millions from far and wide come and sing the deathly song of the

family, and at the time when the person dies a branch of tree

breaks, and falls on the ground.