Headhunters of the Amazon (1921) which tells an extraordinary story that simply would not get published today even if any contemporary explorer or adventurer had the opportunity or the cojones to do what Up De Graaf and his companions did so blithely a century ago. However, this is not just a schoolboy tale of derring-do, but contains much fascinating socio-cultural information about the eponymous head-hunters of the title and some fascinating cryptozoological snippets. Could there indeed be a h