There was a light novel I read a while ago it was really good, the main character somehow ends up in a kind of prehistoric or caveman-like era, with some fantasy elements. He starts off as a kid in a village on an island, where he lives in a cave with some other kids, there is some writing on the walls (think like hieroglyphics, idk the name), and he has a wolf companion. He learns how to use his ancestors' fire and totem tattoos and emblems or something like that, and that's how he gets stronger over time. If anyone recognises this novel could you please tell me the name, ty.