After the loss of Idunn, the gods turned gray and tasted old age. So they gathered for a council, and Odin quickly discovered it, that Loki had a hand in the disappearance of the goddess of youth. They captured him, for as usual he tried to escape and forced, to confess, who kidnapped Idunn. Odin looked gloomy, when he heard, that Thjazi was the perpetrator of the kidnapping. He decided to send Loki to the rescue, knowing his cunning and cunning. Loki, though terrified by the command of the Father of Gods, he couldn't disagree, especially, that Thor claimed to be the guarantor of the success of the mission.
Loki in the form of a falcon flew to Thrimhi and waited there, until Thjazi goes fishing and leaves the house unattended. When it finally happened, rushed into the chamber, where Idunn i was imprisoned, turning her into a swallow, flew with her towards Asgard. When Thjazi returned home and found out about the prisoner's escape, he took the form of a huge eagle and set off in pursuit. From afar, the Aesir saw the falcon flying as fast as it could in its wings, followed by an eagle chasing after him. Loki flew over the wall with the last of his strength, and at the same time flames burst out from the fire that had been prepared by the Aesirs. Thjazi got his wings tanned and fell to the ground. Here Thor caught up with him and killed him with one blow of a hammer. The gods regained Idunn, and with it youth, and got rid of the fiercest enemy after Muspel's sons - the Fire Giants.
Soon after, a beautiful giant appeared at the gates of Asgard. Her name was Skadi and she was the daughter of the giant Thjazi. She came in full armor to seek vengeance for her father's death. Gods, seeing courage, the beauty and youth of Skadi, offered to give her compensation. The girl agreed and demanded one of the Aesir as her husband. She also gave a second condition. The gods must have made her laugh, for she has never laughed before. The Aesir agreed to comply with the demands, with one caveat, that she would choose a husband, not seeing the entire figure, and only the feet. That was the settlement. The gods stood behind the veil, and the girl was looking at their legs. Seat, that Baldr should have the most beautiful feet, she pointed to one of them. Her chosen one turned out to be Njórd. A wedding party was arranged. At the feast, Loki, wearing a goat's beard, was acting like that, that Skadi was laughing out loud. Yes, and the second condition of the contract was met.
Two beautiful children were born from the marriage of Njord and Skadi, Frey i Freyja, favorites of gods and men.