The year is 1969, and Sister June has been sent on her first mission for the First Order. A mysterious corpse has washed up on a Cornish beach, and the local doctor's initial examination suggests that it's not entirely human... Once she begins her investigation, June discovers that this case might be linked to one that occurred several decades earlier. Many locals believe that something unnatural is living in the bay near their village, with some even suggesting that these creatures might be linked to an infamous pirate ship that sank in the area many hundreds of years ago. June soon finds herself trapped in a nightmarish battle. Something ancient is after revenge, and an equally powerful force is determined to resist. Soon the entire village is in peril as a terrible storm hits the area and the dangers of the sea make their way onto land. The Third Beast is the third book in the Chronicles of Sister June series. Each book is a standalone story, but readers are advised to begin with the first volume.