Finding Amy

Sir Noah Archibald Appleton and Sydonie Amelia Bailey are as unlikely a pair of lovers as there ever was. Archie's a baronet with a multi-billion business in the hotel and tourist industry from Woodstock, England; Amy's a social worker from Poughkeepsie, New York. She's black, he's white. She's open and uninhibited; he's the master of the stiff upper lip. She's only ever been in one relationship; he's been known to play the field.
She manages to keep herself financially solvent; he's a billionaire. And that they even met at all is beyond coincidence. He helps her when she runs into him, literally, and once they realize what she has seen, they inform the police. Afterwards, the sparks fly, despite his best efforts to keep his distance, but instead of staying with him as Archie would like, Amy returns to the States. They Skype, text, and call, and he falls more deeply in love with her.
And when he visits her for Christmas, they confess their feelings to each other. Then she disappears. Her older brother Sid, a lieutenant colonel in the Army, joins the search party. Will Noah find the woman he has come to love before it's too late?