Esta é a saga Homecoming de Orson Scott Card. Consiste em cinco livros:
- A memória da Terra
- O Chamado da Terra
- Os Navios da Terra
- Queda de terra
- Nascido na Terra
A maior parte do que você descreve ocorre, da memória, nos livros 4 e 5. Veja se isso traz de volta memórias:
On Harmony, the colonists established the Oversoul - an artificial intelligence, monitoring the planet with a small army of satellites. It also influences the actions of humans. Though it does not prevent them from doing evil, it keeps their destruction limited by suppressing any thoughts that might lead to things like long-distance travel or instant communication. Thus the technology on Harmony includes basic computers, presumably without advanced Internet capabilities, although the Oversoul was used for basic data transfer, and solar-powered handheld energy weapons, but no cars or even wagons.
As duas crianças são Nafai (14) e Luet (13) que lideram a expedição de volta à Terra.