Times are hard for the boar clan: winter is coming and the large herds of herbivores have not yet ventured into the valley.
Old Zorn thinks they won't show up at all. But only the supply of dried meat will allow the clan to survive during the season when the bare trees slumber, waiting for the return of the sun. The boar clan must act or perish.
Roko is a tough guy, but he is the artist of the group: under the direction of Zorn, he is the one who makes the rock dream by throwing the colors of memory on the walls of the caves. Roko is you, reader. You are the one on whom the whole boar clan counts to survive the famine. You will venture further than any of the hunters have ever done. Will you find something to save your people?
Will you make it back despite the hostile, savage world?
The prehistoric era is filled with monsters, ferocious beasts that you will have to face, but also strange peoples with unknown customs that you will have to understand.