tunnel connects it with this trench at this point." His finger moved
from place to place on the map as he talked. "Give me a bomb and
when you hear it burst in this listening post let your men start
across No Man's Land slowly. Presently they will hear a commotion
in the enemy trench; but they need not hurry, and, whatever they
do, have them come quietly. You might also warn them that I may be
in the trench and that I do not care to be shot or bayoneted."

"And that is all?" queried Capell, after directing an officer to
give Tarzan a hand grenade; "you will empty the trench alone?"

"Not exactly alone," replied Tarzan with a grim smile; "but I shall
empty it, and, by the way, your men may come in through the tunnel
from the listening post if you prefer. In about half an hour,
Colonel," and he turned and left them.

As he passed through the camp there flashed suddenly upon the screen
of recollection, conjured there by some reminder of his previous
visit to headquarters, doubtless, the image of the officer he had
passed as he quit the colonel that other time and simultaneously
recognition of the face that had been revealed by the light from
the fire. He shook his head dubiously. No, it could not be and
yet the features of the young officer were identical with those of
Fraulein Kircher, the German spy he had seen at German headquarters
the night he took Major Schneider from under the nose of the Hun
general and his staff.

Beyond the last line of sentinels Tarzan moved quickly in the
direction of Numa, the lion. The beast was lying down as Tarzan
approached, but he rose as the ape-man reached his side. A low