This book is written by Clare Boylan and is based on a just-started novel by Charlotte Bronte. The firs two chapters are Bronte's and the rest are Boylan's. You can tell, too. Boylan is no Charlotte Bronte.
The story isn't too bad, as long as you're not expecting Bronte. It's a quick read (it reminded me of The Woman in White more than Jane Eyre). But it's neither great nor memorable, and I wouldn't bother reading it if I were you.