The Shattered Mask

The Shattered Mask by Richard Lee Byers is the third book of the Sembia: Gateway to the Realms series.

"Shamur Uskevren isn't who she seems.

The matriarch of Selgaunt's most powerful family is renowned for her elegance and restraint, but the Lady Uskevren who the peerage of Sembia envies and respects is nothing but a mask. A lifetime ago, Shamur abandoned the adventurous life of a thief to save her family, taking the place of her murdered niece and marrying Thamalon Uskevren.

Now a series of clues point to the man who poisoned her niece and shackled Shamur to a life she never wanted: Thamalon Uskevren himself. Revenge might be too messy for the Lady Uskevren, but deep down, Shamur's no lady. Yet in her anger, Shamur has forgotten few things are as simple as they seem and the Uskevren have made many dangerous enemies.

Enter the greatest fantasy setting of our generation—enter the Forgotten Realms world."