Valentina knows how to live in the community spread throughout old mining caves under the Martian ice cap. A violent place in a forbidding climate but home for her and her brother. Until she wakes from a coma to find her brother gone. A journey from the polar ice cap to the Martian equator? Not enough to stop Valentina. Not with her brother on the line. Valentina wakes from a coma to find her brother gone. A journey across Mars from the polar ice cap to the equator? Not enough to stop Valentina. Not with her brother on the line.