If only Lady Melissa Dewer could stay dead.

It's Christmas time in Dourstone Nymet, a year since Polly nearly lost her daughter to the eldritch forces that govern the mysterious Dartmoor town.

Since then she has found herself having to lead the community's traditional rituals.

But Dourstone does not like change, and Polly's meddling leads to the return of an ancient evil, isolating the town from the outside world.

Once again Polly finds herself cut off from the only person she can trust. Her daughter.

To get her back she will have to work with the very people she once fought, to solve a series of clues leading to the only thing that can break the siege: the Bellever Hagstone.

The problem is, there's only one person who can solve them.

Luckily, Lady Melissa Dewer doesn't know how to stay dead.