...Kota Mama by John Blashford-Snell, Richard Snailham (2001).
After scientists had found traces of nicotine and cocaine in Egptian mummies,
MBE John Blasford-Snell, British contemporary explorer, known for the Raleigh Expeditions, decides to track down the Inka routes down the Amazon into
the Atlantic. at http://kota-mama.awc.co.uk you can get pix and details of this fantastic adventure. By the way, in my hometown myself and my brother Flavio and many other friends had the opportunity to join the crew.