With loud shouts and yells the Esquimaux surrounded the Monarch. The savages were armed with bows and arrows, and soon a shower of these missiles were shot toward the craft.

Professor Henderson was in mortal terror lest one of the sharp weapons would pierce the gas bag, but, for some reason, the natives fired at the lower part of the ship. Andy and the two helpers were now ready to return the fire. Their guns rattled out and the reports caused the natives great astonishment.

The first shots the defenders had fired over the heads of the Esquimaux, not wishing to kill them if they could help it. But though the reports caused a momentary falling back, the attackers soon rallied again, and shot a thicker cloud of arrows, some of which fell uncomfortably near.

"Let 'em have it right in the faces this time!" shouted Andy.

He took careful aim at the mass of natives who were advancing, and one fell. Bill and Tom followed his example, and the onslaught was checked for a time.

But now reinforcements to the Esquimaux arrived until there were fully five hundred of the fur-clad savages out on the ice surrounding the airship. To cope with such a force seemed madness. Bill received a slight wound in the arm, and Tom had a narrow escape from being killed, a big spear just missing his head.

"Drop down below the rail!" yelled Andy. "They can't hit us so easy then, and we can fire just as good!"

The defenders dropped flat to the deck, outside of the cabin. A loud yell on the part of the Esquimaux told that they thought the adventurers had been killed, and there was a rush to capture the ship.

"Let 'em have it! As fast as you can pull the triggers!" cried the old hunter. "We'll show 'em what we can do!"

The three guns rang out again and two of the natives fell, both badly wounded.