Sixteen-year-old Olwen has spent her entire life on the uninhabited planet of Isis with only her faithful robot as her companion and has no idea how the harsh climate of the planet has changed her, but now a settlement from Earth is coming, and Olwen's life will be changed forever. Reprint.

Book by Monica Hughes

Michael Joseph Flynn has devious plans to cheat and corrupt the inhabitants of the planet Isis, and he appears to be on the verge of success. Few among the planet’s simple agricultural community can resist his magic firestone, his strangely delicious Ambrosia, and the Forever Machine. Only Flynn’s daughter, Moira, can unmask this smooth-talking pedlar. But can Moira avert disaster in time?