“Monsieur:

“In a recent article you referred to me in most unjustifiable terms. Some days before the opening of my trial I will call you to account.

“Arsène Lupin.”

“Monsieur:

“In a recent article you referred to me in most unjustifiable terms. Some days before the opening of my trial I will call you to account.

“Arsène Lupin.”

The handwriting was certainly that of Arsène Lupin. Consequently, he sent letters; and, no doubt, received letters. It was certain that he was preparing for that escape thus arrogantly announced by him.