THE WONDERFUL HORSE SLEIPNIR
"Thou seemest to know nothing either about Sleipnir or his origin," replied Har, "but thou wilt no doubt find what thou wilt hear worthy of thy notice. Once on a time when the gods were constructing their abodes, and had already finished Midgard and Valhalla, a certain artificer came and offered to build them, in the space of three half years, a residence so well fortified that they should be perfectly safe from the incursion of the Frost-giants, and the giants of the mountains, even although they should have penetrated within Midgard. But he demanded for his reward the goddess Freyja, together with the sun and moon. After long deliberation the Æsir agreed to his terms, provided he would finish the whole work himself without any one's assistance, and all within the space of one winter, but if anything remained unfinished on the first day of summer, he should forfeit the recompense agreed on. On being told these terms, the artificer stipulated that he should be allowed the use of his horse, called Svadilfari, and this, by the advice of Loki, was granted to him. He accordingly set to work on the first day of winter, and during the night let his horse draw stone for the building. The enormous size of the stones struck the Æsir with astonishment, and they saw clearly that the horse did one half more of the toilsome work than his master. Their bargain, however, had been concluded in the presence of witnesses, and confirmed by solemn oaths, for without these precautions a giant would not have thought himself safe among the Æsir, especially when Thor returned
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