The next part of Kate Walker's journey takes shape as she finds herself adrift on a makeshift boat. Luckily, the caravan of the youkol people, already crossed in Syberia 2, discovers her before she breathes her last.
Determined to flee their common enemies, Kate decides to help the nomads to accomplish their most singular ancestral tradition: to accompany the transhumance of the snow ostriches towards the sacred steppes where they can reproduce.
A journey through settings that are alternately enchanting or devastated that will take the young woman through her most dangerous and wonderful adventures, always pursued by her pursuers.