To Tempt a Man — Joanna McGauran

Burying her despicable late father and marrying the highest bidder in order to save a beloved friend's life, Rosamunde Gilbert finds herself the bride of Lord Quinton Spencer, a swashbuckling privateer who needs money for a dangerous quest.

Rosamunde Gilbert was sold to the highest bidder. Yet Quint Spencer had married her for money, to finance a dangerous quest. Unable to seduce and abandon his ravishing new wife, he let her think they were sailing for a tropical island. But India was his goal, a perilous voyage that would take them through oceans and deserts, battling pirates, paid assassins, and each other.