"Where did you fall?"
"In the river Indre."
All these "elements" were more or less known to us. I ask for a more special proof of identity.
"Where did you know me?"
"With Admiral Mouchez."
"It is impossible. I first knew Admiral Mouchez at the time of his appointment to the directorship of the Paris Observatory. He succeeded Le Verrier in 1877, two years after your death."
The table is agitated and dictates as follows:
"Give your name."
"Witold. Marchioness, I love you still."
"Are you happy?"