but they still have one question left unanswered: who and where is the seventh sister? They only have one clue - an image of a star-shaped emerald ring. The search to find the missing sister will take them across the globe - from New Zealand to Canada, England, France and Ireland - uniting them all in their mission to complete their family at last. In doing so, they will slowly unearth a story of love, strength and sacrifice that began almost one hundred years ago, as other brave young women risked everything to change the world around them.