Bubbles' father, a fool called Hugh Dunster, who's lost what little money he ever had, is one of her descendants.

There's something just a little Oriental and strange in Bubbles' appearance." "This is 'curiouser and curiouser,' as Alice in Wonderland used to say!" exclaimed Panton.

"Do you think I could persuade Miss Bubbles to give an exhibition of her psychic gifts ?" The speaker uttered the word "psychic" with a very satiric inflection in his pleasant voice.
Varick smiled rather wryly.

"You're quite likely to have an exhibition of them without asking for it! The first evening that my guests were here she held what I believe they call a seance, and as a result Miss Brabazon's uncle, old Burnaby, not only bolted from the room, but left Wyndfell Hall the next morning." "What an extraordinary thing!" "Yes," said Varick, "it _was_ an extraordinary thing.

I confess I can't explain Bubbles' gift at all.