The Sealed Record - A Shackleton Base Story. The Shackleton Base Story, #3

Eleven-year-old Mira Okafor has spent the last six months earning real trust at Shackleton Base. Now Earth wants her - and the rest of the crew - to help solve the strangest mystery the base has ever uncovered. Buried deep in two-billion-year-old ice, a trace of processed metal shouldn't exist at all. When the excavation survey begins, Mira and her friends find something far stranger than an anomaly: a sealed structure, fifty-three years old, deliberately left off every record anyone has ever found.
Director Osei arrives from Earth with more caution than answers, certain the site hides something an old institution worked very hard to bury. As the team digs deeper - through a structural collapse, a dangerous rescue, and a logbook that stops mid-sentence - they piece together the story of an accident, a warning that went ignored, and the people who paid for it. What they uncover isn't a mystery about impossible science.
It's a mystery about a decision someone made a long time ago, and what it costs when the truth stays buried instead of being learned from. Grounded in real impact geology, archival science, and the true, ongoing history of engineers who spoke up and weren't heard, The Sealed Record is a story about honesty, institutional accountability, and what it means to finally set the record straight. Each chapter closes with a Field Note connecting the story to real science and history.
Book Three in the Shackleton Base series.