The Guardian

In the year 2737, Earth is mostly depopulated in the wake of a massive supervolcano, but civilization and culture are preserved in vast orbiting ringstations. Tem, the nine-year-old son of a ringstation anthropologist and a Happdal bow-hunter, wants nothing more than to become a blacksmith like his uncle Trond. But after a rough patch as the only brown-skinned child in the village, his mother Car-En decides that the family should spend some time on the Stanford ringstation. Tem gets caught up in the battle against Umana, the tentacle-enhanced 'Squid Woman', while protecting a secret that could change the course of humanity and civilization.