The Storm Sister (Pan, paperback, £7) and The Shadow Sister (Macmillan, hardback, £16.99) by Lucinda Riley

Following the hugely-successful The Seven Sisters, these are the next books in Lucinda Riley's proposed seven-part series.

The series began in The Seven Sisters as Maia D’Aplièse and her sisters gathered in their childhood home of Atlantis – a beautiful castle on the shores of Lake Geneva – after the death of their adoptive father, the elusive billionaire they call Pa Salt.

Discovering that he has mysteriously already been buried at sea, each sister is handed a tantalising clue about her true heritage.

The Storm Sister focuses on Ally, whose journey leads her to the magnificent fjords and stunning scenery of Norway, accompanied by the haunting music of Edvard Grieg.

There Ally begins to discover her roots and how her story is inextricably linked to that of a young unknown singer from 100 years before.

The Shadow Sister follows the third sister, Star, who begins to trace her heritage in the Lake District and Edwardian London, and subsequently finds her own future in an antiquarian bookshop in modern London.

These are easy to read, enteraining books that are good on character and flit between the present and the past.