Wilder pulls out all the stops for this spellbinding novel of identity, passion, and fear... Once readers fall into X s story, they ll be desperate for the next installments. "Publishers Weekly"(starred review)

From the "New York Times"bestselling author of "Alpha."..
"My name is Madame X."
"My past is locked away.
My present confined to a gilded cage..."
Hired to transform the uncultured, inept sons of the wealthy and powerful into decisive, confident men, Madame X wields culture and wit like a knife. But behind her sophisticated facade X is a woman adrift, trapped between a dangerous past she can t remember and the protection of a seductive man who claims her body and her soul.
Undone time and again by his exquisite dominance, X craves and fears his desire in equal measure. And while she longs for the safety of her tower penthouse, she also yearns to escape. But X has never known anything or anyone else until "he" came along "