The four Fallen, together with their mentor and friend Maya, set off for the far North. They face a new difficult task: to find the polar bear Shuko, who has frozen herself somewhere in the permafrost, and to get the Crystal Polar Bear talisman. A hint for friends is only an ancient song about the Ice City, which is a reference point for searches. Will the friends manage to achieve their goal? How will Rolland react to meeting his own mother, who left him many years ago?