Nancy sets out to unveil a Ghostly Legend and to find a Vanished Groom! Touted as the most romantic event to grace the ruined halls of Ireland's Castle Malloy, the Simmons-Mallory wedding was supposed to be a fairytale beginning, but now the groom is missing! Did a banshee crash the wedding or is this a case of cold feet? Nancy Drew, has to unravel the knot of scattered clues and scary superstitions? She will need to catch more than a bridal bouquet to make this a happily ever after!