Lauren Willig continues the exciting Pink Carnation series with her fourth novel, The Seduction of the Crimson Rose, featuring Lord Vaughn, the delightfully devilish spy from The Masque of the Black Tulip, and Mary Alsworthy, the raven-haired beauty whose sister accidentally stole her suitor in The Deception of the Emerald Ring.

Determined to secure another London season without assistance from her new brother-in-law, Mary accepts a secret assignment from Lord Vaughn on behalf of the Pink Carnation: to infiltrate the ranks of the dreaded French spy, the Black Tulip, before he and his master can stage their planned invasion of England. Every spy has a weakness, and for the Black Tulip that weakness is black-haired women--his "petals" of the Tulip.

A natural at the art of seduction, Mary easily catches the attention of the French spy, but Lord Vaughn never anticipates that his own heart will be caught as well. Fighting their growing attraction, impediments from their past, and, of course, the French, Mary and Vaughn find themselves lost in the shadows of a treacherous garden of lies.

As our modern-day heroine, Eloise Kelly, digs deeper into England's Napoleonic-era espionage, she becomes even more entwined with Colin Selwick, the descendant of her spy subjects.