On the isle of Crowstone, set upon eerie marshes with a prison as its closest neighbour, the Widdershins sisters: Betty, Fliss and Charlie, set out to break a deadly curse which has haunted their family for generations.
But the curse isn't the only unusual thing about the Widdershins. Each of them possesses a magical object that's been passed down the family. A scruffy carpet bag, a set of wooden nesting dolls and a gilt-framed mirror...
none of them is what they seem.