outpost. Forcing his captive to walk before him he pushed on toward
the west until, late into the night, he re-crossed the railway where
he felt reasonably safe from discovery. The German had cursed and
grumbled and threatened and asked questions; but his only reply
was another prod from Tarzan's sharp war spear. The ape-man herded
him along as he would have driven a hog with the difference that
he would have had more respect and therefore more consideration
for a hog.

Until now Tarzan had given little thought to the details of revenge.
Now he pondered what form the punishment should take. Of only one
thing was he certain--it must end in death. Like all brave men
and courageous beasts Tarzan had little natural inclination to
torture--none, in fact; but this case was unique in his experience.
An inherent sense of justice called for an eye for an eye and his
recent oath demanded even more. Yes, the creature must suffer even
as he had caused Jane Clayton to suffer. Tarzan could not hope to
make the man suffer as he had suffered, since physical pain may
never approach the exquisiteness of mental torture.

All through the long night the ape-man goaded on the exhausted and
now terrified Hun. The awful silence of his captor wrought upon the
German's nerves. If he would only speak! Again and again Schneider
tried to force or coax a word from him; but always the result was
the same--continued silence and a vicious and painful prod from the
spear point. Schneider was bleeding and sore. He was so exhausted
that he staggered at every step, and often he fell only to be
prodded to his feet again by that terrifying and remorseless spear.

It was not until morning that Tarzan reached a decision and it came