The supply of rahmobis, or diamonds, though not so plentiful, was a far greater treasure even than the precious yellow metal, although most of these were in the rough. They averaged in size from half a carat to several carats, with here and there a specimen running ten or fifteen carats. Of these assorted, uncut stones there were nine sacks, each about the size of a five-pound sack of sugar. In addition there were several packets of finely cut and polished gems, the product of skilled Martian cutters. These varied approximately from a quarter of a carat to two carats, but a dozen or more fine stones weighed more than ten carats each! Some excellent emeralds and rubies were included among the cut stones, but only a few, because, while the white diamonds were quite plentiful on Mars, the green and the pigeon-red varieties were very rare. Truly the Sphere was to carry back a ransom of kings!

But of all this treasure none was so precious to Robert as his princess.

With Robert’s complete recovery, a great pageant was arranged in which the emperor, princess and all the nobles were to participate. Robert and Professor Palmer were invited to ride with Zola and her father in the procession.

Elaborate preparations were made for this event which was to typify the recent victory and the reunion of all factions, and the gratitude of the Martians for the timely aid by their visitors from Earth. Great ornamental arches were hurriedly built, and large quantities of the various kinds of Martian flowers were accumulated in readiness for the event. The gathering of these flowers was no small task, since the restricted growing areas of the waning planet permitted of but little deviation from the grim task of producing enough food to sustain its populace.

The pageant was also to serve another purpose. At its termination the emperor was to announce the giving of his daughter’s hand in marriage to Robert and her subsequent departure for Earth with him. Some resistance was anticipated from various nobles, particularly those who were eligible for Zola’s hand. It was because of a possible demonstration against, the princess’ departure that the emperor, with excellent foresight and admirable sacrifice, had commanded that the wedding take place quietly at the palace immediately after the pageant, and that the Sphere start on its long journey with his most precious possession immediately afterward.

The day of the great pageant dawned with the same wonderful brilliance that heralded 680 of the 687 days of the Martian year.

All preparations of the royal party for the pageant were completed before noon. At midday Robert and the professor partook of a simple luncheon with Zola and her father. With the specter of separation so near, conversation languished, and it was with real effort that the professor maintained at least a semblance of cheerfulness within the little group through his persistent but tactful patter of small talk.

Early in the afternoon the nobles began to arrive. Within an hour the assembly of plumed and gayly dressed riders had formed in marching order, and with a great clattering of hoofs rode through the big archway leading from the palace terrace to the main road.

A company of guards led. The emperor and his daughter, accompanied by Robert and Professor Palmer, followed them. Behind them came the chief nobles of the great empire.

From the time of the earliest formation on the palace terrace, it became apparent that some peculiar unrest pervaded the assembly. This grew more tense as the time passed, and was only temporarily relieved when the column had ridden out from the palace. Several times as his mount shied, Robert fancied he surprized secret communications between certain of the nobles. The ostensibly unconcerned looks upon their countenances, and their abrupt cessation of whispered confidences as he caught their eye, somehow forced an unpleasant conviction upon Robert that these communications not only concerned the emperor and his party, but presaged evil for them. He wondered if, in some manner, advance news of his impending marriage to the princess and of their intended departure had got abroad. Anticipation of such information likely would produce resentment among the young-bloods who had hoped to obtain the princess’ hand themselves, and they might endeavor to stir up trouble to prevent the match and the departure of the princess. He determined to keep a sharp outlook for any sign of treachery.