him on. "For," said he, "this is by far the most dangerous part of our
voyage. The most vicious of our enemies lurk outside of Coral-Land
waiting for a chance to grab the tourist, but, once inside that long
reef that you see some distance ahead, and we are safe. I have a
special entrance known to myself alone, and no very large fish, or
shark can get through it. I only hope that we can reach it without
being seen."

But it was a vain hope. No sooner were the words uttered, than some
instinct caused the Pilot to glance hastily behind him, and there,
well in the rear to be sure, but moving towards them with
uncomfortable swiftness, were two large, dark moving bodies.

"Sharks!" cried Sammy in terror.

"Sword-Fish!" said the more experienced Pilot. "Follow me and swim for
your life!"

Away he darted, heading in a straight line for the high reef, away
darted Sammy after him, and on came the murderous Sword-Fish. Faster
and faster swam the pursued, and faster and faster the pursuers. On
they came, nearer, nearer and still nearer, their huge shapes and
cruel swords suggesting a fearful death.

Sammy's strength was almost gone, his fins were growing weaker, and he
swam more and more slowly, while the mouth of the monster nearest him
watered in eager anticipation.

But the dauntless Pilot still kept on his course, and showed no sign
of weakening. Straight at the large reef, now very near, he dashed,