George Chetwynd Griffith 
The Romance of Golden Star [EPUB ebook] 

'Ah, what a thing it would be for us if his Inca Highness were really only asleep, as he looks to be! Just think what he could tell us—how easily he could re-create that lost wonderland of his for us, what riddles he could answer, what lies he could contradict. And then think of all the lost treasures that he could show us the way to. Upon my word, if Mephistopheles were to walk into this room just now, I think I should be tempted to make a bargain with him. Do you know, Djama, I believe I would give half the remainder of my own life, whatever that may be, to learn the secrets that were once locked up in that withered, desiccated brain of his.'