They all looked past Zog's whirling body, which was slowly enveloping them in its folds, toward the round opening in the dome.

A dark object had appeared there, sliding downward like a huge rope and descending toward them with lightning rapidly.

They gave a great gasp as they recognized the countenance of King Anko, the sea serpent, its gray hair and whiskers bristling like those of an angry cat, and the usually mild blue eyes glowing with a ferocity even more terrifying than the orbs of Zog.
The magician gave a shrill scream at sight of his dreaded enemy, and abandoning his intended victims, Zog made a quick dash to escape.
But nothing in the sea could equal the strength and quickness of King Anko when he was roused.

In a flash the sea serpent had caught Zog fast in his coils, and his mighty body swept round the monster and imprisoned him tightly.

The four, so suddenly rescued, swam away to a safer distance from the struggle, and then they turned to watch the encounter between the two great opposing powers of the ocean's depths.