High Quality Content by WIKIPEDIA articles! First Light is a young adult science fiction and mystery novel by Rebecca Stead, first published in 2007. The novel follows Peter, who is in Greenland with his father and mother for research on global warming, and Thea, who lives in Gracehope, an underground colony located below Greenland. First Light explains how global warming is melting Gracehope and Peter and Thea`s attempt to persuade the people to leave. The novel addresses the effects of global warming as a theme.