As of 2020, which author has published 6 in a series of 7 books based on the 7 sisters of the “Pleiades”?

The Pleiades were 7 sisters: Maia, Alcyone, Asterope, Celaeno, Taygete, Electra, and Merope, daughters of Atlas, a Titan commanded by the god Zeus to hold up the earth, and Pleione, the mythical protectress of sailors.

After a chance meeting with the hunter Orion, the Pleiades and their mother became the objects of his pursuit. To protect them from Orion’s relentless amorous advances, Zeus changed them into a star constellation in the heavens. It is among the star clusters nearest to Earth and is the cluster most obvious to the naked eye in the night sky.

Lucinda Riley (born Edmonds) (1966, Lisburn, Northern Ireland) is an Irish author of popular historical fiction and a former actress. She is a bestselling author of “The Butterfly Room”, “The Olive Tree”, “The Midnight Rose” and “Hothouse Flower” (also called “The Orchid House”). Her books have been translated into over 30 languages and sold over 20 million copies worldwide. Her “Seven Sisters” series follows 7 sisters, and begins as their adoptive father – the elusive billionaire they call "Pa Salt" dies and each sister is given a clue as to their past. Each book is the story of one of the sisters as they trace their origins all over the world, in tales of love and loss.

The first book in the series is “The Seven Sisters”; followed by “The Storm Sister”, “The Shadow Sister”, “The Pearl Sister”, “The Moon Sister”, and “The Sun Sister”, with another book to follow, due to be published in spring 2021.