Black Moonlight — Amy Patricia Meade

It's 1935 -- mystery writer Marjorie McClelland and her new husband, millionaire Creighton Ashcroft, have sailed to a secluded island near Bermuda for a romantic getaway. Instead they find the Ashcroft vacation home filled -- to Creighton's horror -- with his family. The honeymoon is most definitely over when one of the group is found murdered. Can Marjorie untangle the multiple motives and family turmoil to find the killer among them?