Better still, the time has come for my friend to speak out fully.

You are going to know all; and, without further preamble, I am going to place before your eyes the problem of The Yellow Room as it was placed before the eyes of the entire world on the day following the enactment of the drama at the Chateau du Glandier.
On the 25th of October, 1892, the following note appeared in the latest edition of the "Temps": "A frightful crime has been committed at the Glandier, on the border of the forest of Sainte-Genevieve, above Epinay-sur-Orge, at the house of Professor Stangerson.

On that night, while the master was working in his laboratory, an attempt was made to assassinate Mademoiselle Stangerson, who was sleeping in a chamber adjoining this laboratory.

The doctors do not answer for the life of Mdlle.

Stangerson." The impression made on Paris by this news may be easily imagined.
Already, at that time, the learned world was deeply interested in the labours of Professor Stangerson and his daughter.