work....

"But Ekstrom I could never find. It was as if he knew I hunted him. He was
seldom twenty-four hours ahead of me, yet I never caught up with him but
once; and then he was too closely guarded.... I pursued him to Berlin,
to Potsdam, three times to the western front, to Serbia, once to
Constantinople, twice to Petrograd."

The officer uttered an exclamation of astonishment. Lanyard looked his way
with a depreciatory air.

"Nothing strange about that. To one of my early training that was
easy--everything was easy but the end I sought.... En passant I collected
information concerning the workings of the Prussian spy system. From time
to time I found means to communicate somewhat of this to the Surete in
Paris. I believe France and England have already profited a little through
my efforts. They shall profit more, and quickly, when I have told all that
I have to tell....

"Of a sudden Ekstrom vanished. Overnight he disappeared from Germany. A
false lead brought me back to this front. Two days ago I learned he had
been sent to America on a secret mission. Knowing that the States have
severed diplomatic relations with Berlin and tremble on the verge of a
declaration of war, we can surmise something of the nature of his mission.
I mean to see that he fails.... To follow him to America, making my way
out through Belgium and Holland, pursuing such furtive ways as I must in
territory dominated by the Boche, meant much time lost. So I came through
the lines to-night. Fortune was kind in throwing me into your hands: I
count upon your assistance. As an ex-agent of the Secret Service you are in
a position to make smooth my path; as an Englishman, you will advance the