Lisa Kleypas launches a new romance novel series with Mine Till Midnight. The Hathaway siblings have been having a bad luck streak. They've lost their parents and now the head of the family, Leo Hathaway, Lord Ramsey, is driving himself to death. Amelia Hathaway is determined not to lose any more of her family. They are losing money fast.

Enter Cam Rohan, half-Gypsy and former factotum to one of the most successful game houses in London. And extremely lucky with money.

Cam and Amelia are drawn together, even through social taboo wrought by Victorian sensibilities that frown upon their relationship. Amelia is the sister of a lord (albeit a drunk/self-distructive one) and Cam's half-Gypsy heritage clearly marks him as no prince.

This book is a spin off of her Wallflower series and many readers were very curious about Cam Rohan's mysterious past.

Lisa Kleypas creates a loving and supportive family with the Hathaways. And though they do have their flaws, she takes time to build up several characters who will obviously be featured in their own stories in the future.

We are introduced to Merripen, a Gypsy man who also has a mysterious past. He grew up with the Hathaways after being left for dead. His love for Win, the most frail of the Hathaway children, is a little painful to read as he is filled with dark emotions and feelings of being inadequate.