They met in a shack last month deep in the Mexican jungle -- Danielle Mitterrand and the Marxist guerrilla Subcomandante Marcos -- and an erotic fascination was born. The pipe-smoking rebel wore his mask throughout his meeting with the former French first lady. But as Mrs. Mitterrand recounts in the Sunday Times of London, she could still peer into his eyes, which are " deep brown and flecked with gold." She could still luxuriate in his voice: " It was both powerful and soft." Indeed, the mask made Marcos "more timeless, disincarnate." He gave her a paper rose, which she now keeps in her bedroom. Francois Mitterrand's widow has always had a taste for radical chic, and she had come to Chiapas to escape the "dictatorship of money." While the rest of the world is hung up on material things, she maintains, the Zapatista rebels offer an alternative way of living. As for Subcomandante Marcos, Mrs. Mitterrand reports that this month he is convening an international meeting of "humanity against neo-liberalism." Charlie Peters, beware!