Darkness came on quickly after leaving the pole as they passed into the night which had long since enveloped that part of the planet toward which they were headed. Like a cannon ball the Sphere roared southward, the dim topography of the planet swaying dizzily below.

Prevailed upon by Robert, the others had decided to snatch some rest after a light repast. But he felt no fatigue in his anxiety to reach the princess.

The sun’s edge was peeping over the horizon once more as they neared Svergad. The others woke up and watched their approach interestedly. Soon the spires and domes of the northern metropolis appeared in the distance. A few minutes later they were drifting preparatory to landing.

Suddenly one of the Martians gasped.

“The enemy!” he cried, pointing.

All eyes followed his outstretched arm. Thousands of tents dotted the level plain beyond the city’s distant boundary, extending in all directions and partly encircling the city!

19

Upon their arrival in the palace, Robert and his companions found the royal household in an uproar. The emperor’s army, vastly superior in numbers and weapons, had already fought its way round two sides of the city and was fast surrounding it. Striking with unexpected promptness, and transported swiftly the greater part of the distance by rail, the advance forces had appeared before the city shortly after the Sphere’s departure for the pole. Thus did the emperor elect to reply to Hakon’s ultimatum. In another day the Svergadians expected to be in a state of absolute siege.

It must not be supposed that the Martians had done away with arms and soldiers, even though they enjoyed one universal government. Rebellions were not unknown, and the central government had its hands full keeping all factions quiet. Emperor Kharnov, himself a usurper, maintained a strong army, ostensibly for policing and preserving order, but in reality to protect himself against the aspirations of his numerous enemies.

With but some seventy hours of food supply within the city boundaries, the situation seemed desperate. So far, Kharnov had made no specific demands, but it was expected that the conditions which he would dictate after encircling the city would hinge upon the possession of Zola.