“Nothing! I give you my word, Herr major.”
Heideck got up.
“I charge you not to attempt to leave the town or in any other way evade the German authorities. You will guarantee this not only as regards yourself, but also as regards your wife; and you will further promise me to break off at once all relations with the persons involved in this espionage affair, unless at our order, or in agreement with us.”
Eberhard Amelungen, whose powers of resistance seemed completely broken in this painful hour, nodded assent.
“I promise both, Herr major!”
Heideck, having left a criminal official with instructions to keep watch, repaired without delay to the office of Lieutenant-Colonel Nollenberg, head of the intelligence department for Antwerp. He informed him of the result of his conversation and examined the confiscated papers in his presence.
A large number were letters from the Countess Clementine Arselaarts to Frau Beatrix Amelungen, and their contents were harmless, with the exception of a few expressions advising watchfulness and despatch.
But in a special envelope, sealed several times, there was a sheet of paper, covered with close writing, which could not be read offhand, since the letters were apparently jumbled together quite arbitrarily and irregularly.
“A cipher!” said Heideck. “But we shall soon get to the bottom of it. You have some capable interpreters at your disposal, and it might be a good thing if they set to work at once.”
He continued his examination, and suddenly the blood rushed to his face, for in his hands he held a letter, the handwriting of which he recognised at the first glance as Edith’s. Its contents were as follows:—