The Marriage Debt — Louise Allen

Is she a highwayman's bride…

Marrying a highwayman awaiting execution is Miss Katherine Cunningham's only hope -- for that way her crippling debts will die with him. But it turns out that her new husband, Nicholas Lydgate, is innocent -- and the son of a duke!

or the wife of a marquis?

Katherine is determined to save his life, although this will make a temporary husband into a permanent one! Truth be known, she is attracted to Nicholas, but she won't hold him to a union made in such circumstances -- until he shows he cares for her…