The life of thirteen-year-old Jack changes in an instant: in the morning he had a house in a cozy Danish town and loving parents - and in the evening of the same day he, lonely, scared, with a broken heart, finds himself somewhere far from Earth in the company of strangers. It soon becomes clear that the boy's often-frequented nightmare, which he considered just a nightmare, is related to his new reality. In that dream, eerie winged snakes hovered in a blood-red sky with six celestial bodies. The vision turned out to be a fact from the history of Idun - a previously unknown world. Jack's fate is now connected with Idun. Yesterday's ordinary schoolboy has a dangerous mission, as well as new friends: a girl from Madrid named Victoria, a young prince and a sorcerer. And, of course, the mortal enemy is a merciless young man with a chilling blue eye.