One of our members, Margaret Cameron-Ash, has published a book about the Endeavour Voyage: "Lying for the Admiralty" (2018).
It makes an excellent circumstantial case – in the absence of smoking guns – that Captain Cook was under orders not to reveal his best discoveries. It is inconceivable that the Greatest Navigator of the Age would miss Bass Strait or Port Jackson. These 'mistakes' are best understood in the light of the furious rivalry between the French and British in the South Seas. The blurb calls the book a ‘cartographical thriller’, and indeed it is!
It is a great read!