I remember the scary chanting opening music with burning Aztec skulls etc. There was also a sort of whispered soundtrack notably behind Patrick Troughton's evil character Nasca (Whispered: "Nasca, Nascaaaa " etc. I also remember an episode in which the hero (Brian Deacon I think) is about to be burnt but he knows the exact time of the next solar eclipse and pretends that his magic has made the sky go black. Vague memories but boy would I love to see it again ! Anyone know if DVD is a possibility ? It's another of those adult kid shows like Children Of The Stones. The great thing about the was that it was a sort of horror type series for kids plus we learnt something about the ancient South American cultures.