his moving feet made hardly a sound.

A little before the house ran a line of flowering tropical hedge.
Darrin gained this, and was about to pass in through an opening
in the hedge when a figure suddenly appeared in the darkness right
ahead of him.

A rifle was leveled at the young ensign's breast, and in a steady
voice came the hail that set the young ensign's heart to beating
fast:

"_Quien vive_"

It was the Spanish challenge---"Who goes there?"




CHAPTER VII

DAVE DARRIN TO THE RESCUE


Dave's sword hung at his side. His revolver was in its scabbard
over his left hip, but just out of view of the sentry.

As to his being in uniform, he realized that the night was so
dark that there was little danger of his nationality being discovered.

All these thoughts flashed through his mind in a twinkling, as