"Ravens and a witch and a haunted house?" said Grace ...

New recruit Tom Eely can't wait to join warden Grace Griffin on their first crime-fighting mission together.

Eager to use their powerful gadgets and combat skills, Grace and Tom are hoping for an adventure. So a call to a quiet mountain village to sort out some bothersome birds isn't quite what they had in mind.

But as the pair investigate, the situation becomes more puzzling - and more perilous. With lives at stake, Grace and Tom will need all their wit, skill and courage to solve the raven riddle ...