Merely the Groom

Colin McElreath, Viscount Grantham, has sold his soul to the devil—a devil of an irate English father. For cash. Colin is about to become a very wealthy man—a very wealthy married man.
The powerful Baron Davies urgently requires a respectable husband for Gillian, his disgraced daughter, and he sees Colin as the perfect candidate. When Colin balks, Davies isn't above using his daughter's large dowry as an incentive—or applying a bit of blackmail. He threatens to expose the undercover work the Free Fellows do for the government, and as a charter member of the Free Fellow League, Colin has sworn to protect the League at all cost. Also someone has been masquerading as Colin, which indirectly landed Gillian in her predicament, so Colin is faced with no choice.
He doesn't know whether to laugh or to cry at the irony. After a lifetime of avoiding society misses, he is about to marry one.
Miss Gillian Davies is about to become a blushing bride.
And Colin McElreath is merely the groom ...