I loved this captivating adventure/survival story set in two intriguing timelines-one in the near future (2068) and another 10,000+ years later. The alternating narratives were well-paced, controlled but emotional, and seamlessly connected. I couldn't help but feel a deep sense of compassion for these scientists-fragile yet incredibly resilient humans who, despite their vulnerabilities, exhibit brilliance, open-mindedness, and extraordinary bravery.