"But why should she write the letter at all?
Why should she want her death here, under these strange conditions, announced to the world?
A little cruel I call it--yes, Millie, a little cruel." "Stella wasn't cruel," said Lady Splay.
"She wasn't," Hillyard agreed.

"I know why she wrote that.

She wrote it to strengthen her hand and will at the last moment.

The message was sent, the announcement of her death would be published in the morning, was already in print.

Just that knowledge would serve as the final compulsion to do what she wished to do.