In the 1970s, when arrowheads were discovered in Antarctica, it sparked an archaeological mystery. Were they the first sign of an untapped history of the frozen continent, or part of a conspiracy to rewrite Antarctic history. Thomas Bywater talks to the pioneers of Antarctic archaeology about their strangest finds, a dictator's attempt to change history, and a woman whose skull was found on Livingston Island.

With thanks to Ruben Stehberg, Fiann Paul, Michael Pearson

For more on this series, head to nzherald.co.nz/detour