To Be Taught, If Fortunate

A team of these explorers, Ariadne O'Neill and her three crewmates, are hard at work in a planetary system fifteen light-years from Sol, on a mission to ecologically survey four habitable worlds. But as Ariadne shifts through both form and time, the culture back on Earth has also been transformed. Faced with the possibility of returning to a planet that has forgotten those who have left, Ariadne begins to chronicle the story of the wonders and dangers of her mission, in the hope that someone back home might still be listening.