The Night of the Wedding

Just after WW1, Kennedy Haste wins the heart of the fair American girl Eve Carroll and marries her. When tragedy strikes before the honeymoon even gets a good start, he's frantic to find his missing wife. With even his best friend and his sister under suspicion, he's got nowhere to turn but to Dagon of Scotland Yard—but even Dagon, it seems, has some hefty secrets.

I do love a good kidnapping mystery, and this one had lots of twists and turns and even some hidden passageways in the old English manor house. All the feels!