Golden Rule, as his pony was named, sprang to the voice of his master as though conscious of what depended upon him. He passed across the stern of the Ram so closely that his wings almost touched it.

Whi—rr—rr!

The Ensign's sword ripped through the curtain, and Golden Rule shot by like an arrow.

Quickly Lawe turned and swept back again on the same track. Again the blade cut through the curtain, with a downward stroke this time that laid open a vertical seam.

"Once more, my brave Golden!" said the Ensign, patting his pony, and he swept the third time across the face of the curtained door. The top and both edges were now severed from the sides of the shell. The curtain dropped over so that one corner dragged in the water. The hollow hull of the shell ship was exposed, and within it the angry faces of a group of Pixies.

The work wanted yet the finishing stroke. One side of the curtain was slit down to the water line. The waves were already washing in thereat; but the other side was only partly severed. It needed one stroke more—just one! That would lay the curtain level with the lake; then the billows would roll in, and claim the Pixies and their infernal machine for their own.

A fourth time Lawe swept across the stern of the Ram. A fourth time his good sword did its work without fail. The true eye and steady hand of the Ensign sent it home to the mark. The curtain trembled a moment in the breeze, fell backward with flap and splash upon the surface of the lake, and dragged behind, checking the Ram's motion as though it were a heavy anchor, and then weighed the stern downward to the surface. The waves broke in with a roar that echoed through the hollow hull. The groans and yells of the Pixie crew answered back the voice of the waters.

Lawe cast one exulting glance within as he rode by. But he was doomed to a more terrible trial than he had yet endured. As he sped across the opening on his fourth trip, a dark form leaped upon him from the hold. He was in a Pixie's clutch! One claw grasped the Ensign's foot, the other was buried deep in Golden Rule's breast. The pony, frantic with terror and pain, plunged and shook his wings. But the Pixie kept his hold. Lawe looked downward into his face. He saw the black visage, and sneaking eyes of Lieutenant Hide!

"Ha, ha," laughed the Pixie. "You know me, do you? Well, you've done a fine thing to-day, no doubt! Your name shall go down to posterity, of course. But I think I shall stop you from going down any further in that line. We shall try another sort of going down. There's nothing like pleasant company, even when one's making a voyage to the bottom of the lake! Ha, ha!"

The malignant creature spoke truly. They were sinking slowly together, horse, rider and Pixie into the lake. The weight of Hide's body might have been overcome, but the motion of the pony's wings was much hindered. Golden Rule struggled nobly, but fell steadily toward the water. Ensign Lawe had by this time recovered from the shock of the unexpected assault.