When Matt, Jo, and Dad embark on a new mission at the Cassell Antarctic Research Base, they expect to be able to search this frozen landscape for fossils in peace. But after their precious finds go missing, Matt starts to wonder if Frank Hellman's reach extends further than they'd thought ...

When Matt, Jo, and Dad embark on a new mission at the Cassell Antarctic Research Base, they expect to be able to search this frozen landscape for fossils in peace. But after their precious finds go missing, Matt starts to wonder if Frank Hellman's reach extends further than they'd thought ...