piano can play of itself, without a hand moving the keys, she has decided that in this diabolical affair an invisible hand, the ghostly hand of some spirit from the other world, has intervened.
This supposition is not altogether admissible, for it seems to have been sufficiently proved that spirits do not possess hands. But the nurse does not stop for such fine distinctions, and she firmly believes that the spirit of Adrian Baker is wandering about the villa. Condemned perhaps to eternal torment, he takes pleasure in torturing the living even after his death.
And it is indeed a diabolical amusement, for the serenade is repeated nightly; the family are aroused from sleep; they hasten to the pavilion and the piano becomes silent; they enter it and they find no one. They have observed that the airs played by Berta in the morning are repeated by the piano at night.
Juana is assailed by continual terrors; there is no peace in the house. Berta's father is unable to explain the mystery, and his mind is filled with confusion and his heart is a prey to sudden alarms. The light of day dissipates the agitation of their minds, they fancy themselves the victims of vain hallucinations, and, arming themselves with heroic valor, they make plans for unravelling the awesome mystery.
The most courageous among them would hide in the pavilion, and there await in concealment
