A Manor of Making It by Hadley Harlin

I know almost everything there is to know about Madden Bendoir. He has one sister, two hunting dogs, and a smile to evaporate diamond knickers.
Tatler Magazine routinely names him the most eligible bachelor in Britain, and he’s set to inherit Hills Hall and take his seat in the House of Lords.
Madden is smart and steady—someone you could trust in a crisis.
And my best friend’s older brother.
He’s never given me a second glance.
Until now.
Crisis, here we come.