The novel uses a dual-timeline narrative that moves between the rugged landscapes of Scotland and the historic caves of Spain: La hermana luna (Las siete hermanas, #5) - Goodreads

(The Moon Sister) is the fifth installment in Lucinda Riley’s internationally acclaimed Seven Sisters series. This volume follows the journey of Tiggy D'Aplièse , the most spiritual of the adopted sisters, as she uncovers her biological roots. Story Overview