Substitute Bride

"Prologue “Hey, David, Rachel, c’mon! What’re you doing?” Rachel Carlton looked up to see her twin sister, Roxanne, standing in the shallows, water fizzing around her bare brown feet. Behind her, the August sun glittered off the waters of the Gulf of Mexico, causing the surface to look as if it had been dusted with diamonds, and turning Roxanne’s brown pigtails into spokes of gold."