Surprisingly, I found this Sir Hugh Corbett mystery more difficult to get into than others; nevertheless, it was a powerful story of evil, corruption, and violence, this time in Northumbria. As a direct result of the mayhem wrought against the Scots by King Edward I, Sir Hugh is riding north with his retinue ostensibly to deliver 4 Scottish prisoners back to their kin, Robert the Bruce. En route, they are attacked by an evil coven called the Black Chesters, and if they hadn’t been warned ahead of time, Sir Hugh, Ranulf-atte-Newgate, and Chanson, as well as everyone in the party would have been slaughtered. Finally, believing themselves safe at Aldwick castle, Sir Hugh is perplexed as more people die in a classic “locked room” event, and as he and Ap Ythel are themselves attacked. They hear repeatedly of “Paracelsus”, the leader of the Black Chesters, and of the gangs of black visored and cloaked horsemen who gallop across the moors, slaughtering indiscriminately. Once again, Sir Hugh is hard pressed to determine what is actually going on, but the climax of this book, when he finally makes his plans and sees them through, is truly gripping.