Ambush or Adore by Gail Carriger

Agatha Woosmoss, the Wallflower, is the greatest intelligencer of her generation. And no one knows she exists. She has been invisible, capable, and cunning for well over four decades. Her greatest skill is in her ability to go forever unnoticed. Except by one man. Pillover Plumleigh-Teignmott is a professor of ancient languages at Oxford University. He’s tried to ignore his training as an Evil Genius and live a quiet life away from politics and intrigue. When an assignment goes horribly wrong, Agatha must hide and heal. So she… Read more.