Amazon.com Product Description (ISBN 0449910067, Paperback)

"Open the pages, and out comes a whiff of brimstone, as The Oracle Glass transports you to the Paris of kings and witches, on a guided tour of corruption, love, and sorcery."
--Diana Gabaldon
Seventeenth-century Paris. Geneviève is a skinny, precocious girl with a mind full of philosophy and the remarkable power to read the swirling waters of an oracle glass. Left for dead by her family, she is taken in by the ingenious occultist La Voisin, who rules a secret society of witches that manipulates the rich and the scandalous all the way up to the throne. Tutored by La Voisin, Geneviève creates a new identity for herself--as the mysterious Madame de Morville, rumored to be one hundred fifty years old.
Soon, even the reigning mistress of the Sun King himself consults Madame de Morville on what the future holds for her. And as Madame de Morville, Geneviève can revel in what women are usually denied--power, an independent income, and the opportunity to speak her mind. But beneath her intelligence and wit, and in the face of unexpected love, Geneviève is driven by the obsessed spirit of revenge....
"INTELLIGENT, WITTY AND ELEGANTLY WRITTEN."
--San Francisco Chronicle
"Judith Merkle Riley's novels are small jewels, smooth and polished, glowing with a light all their own....Merkle Riley has her own oracle glass--and she uses it to see as vividly into the past as her Geneviève sees into the future."
--Detroit Free Press
"Enlightening, enticing...The author's own alchemical skill is fully evident here as dashes of black magic and sorcery are added to spice the lively plot. Liberal sprinklings of wry wit and mordant humor help keep the narrative cauldron bubbling."
--The Cleveland Plain Dealer