Title: The Arctic Code (Dark Gravity Sequence)
Subjects: Adventure and adventurers, Extraterrestrial beings, Fiction, Environment, Science fiction, Ice age, Adventure fiction, Adventure stories, Scientists, Nature & the Natural World, Action & Adventure, Juvenile fiction, Mother-daughter relationship, Science Fiction, Aliens (Fictional characters), Mothers and daughters, JUVENILE FICTION, Glacial epoch, Children's fiction, Glacial epoch, fiction, Scientists, fiction, Mothers and daughters, fiction, Adventure and adventurers, fiction, Extraterrestrial beings, fiction