Since writing this story Jaine Fenn has witnessed an Aymara shaman performing the Misa for real. Fortunately, the truth turned out to be rather less dangerous than fiction.
When not travelling to foreign parts in search of adventure, Jaine writes science fiction, with occasional forays into horror or fantasy. She is the author of a number of published short stories and of the Hidden Empire series of far future SF novels, the first one of which, Principles of Angels, was published by Gollancz in 2008.
Her website is www.jainefenn.com and she can be found on Twitter as @JaineFenn.