Yes read them all, particularly liked the ones set in Australia and the sister who was somehow linked to Beatrix Potter, sorry their names elude me. I guess most readers anticipated there would be a concluding story that would relate to the missing sister, and tie up the loose ends, personally I don't think Pa Salt died, there were many hints he had been sighted. We shall see! Yes I too thought it a strange premise Calendar Girl that a single man would want to adopt all these girls from such different backgrounds, but maybe we will learn some more as to why in this book.
Lucinda Riley writes a good yarn, I like books that have two time frames and the stories eventually cantilever together in the conclusion. Kate Morton writes in a similar vein, for me she has the edge over Lucinda Riley I really love her books, but I have enjoyed The Seven Sisters series and look forward to the revelations in the final book.
Anyone who gets to read it right away, no spoilers please!