A Time for Deceit — Elsie W. Strother

Emily Porter couldn't help being the beauty of the family. Her older sister was pretty enough in her own way. But whenever one of Denise's beaux met her devastating blonde sibling, he fell madly in love with Emily.

Well, this time will be different, Emily vowed. In a few days Denise would marry handsome Kenneth Green on a small Caribbean island. So it was clearly a time for deceit. To avoid any mishap, Emily disguised her good looks from her future brother-in-law. But Ken fell in love with her anyway. That was only one of Emily's problems. Because with the strange turmoil that overcame her own emotions--and the strange accidents she kept having--it would be a miracle if she returned to civilization in one piece. And that's exactly what saved her--a super-fantastic miracle!