Atmospheric-wise, this is where HP Lovecraft meets the Brothers Grimm: decrepit castles, steaming jungles filled with semi-human soldiers, witches and curses, visions and nightmares. It's a huge story with a lot happening, a lot to see, read, imagine and work out in your head. It's not a book to skim over few pages or get distracted and lose track of what's what.
(Yeah a bird hit the window right by my head which made me leap like a mile while I was reading. There was a flash of red and I thought oh, no, blood! But it was just a male cardinal sitting on the deck rail staring at me. It's a creepy book which can make a red cardinal look frightening.)
Former military hero Mark Hunter is sent on a mission into the jungles of Bolivia where he encounters not a drug cartel-hideout or counter-revolutionary types, but two witches. (Maybe?) We aren't sure at first, but the mission completely falls apart; there's chaos and otherworldly violence in which the wrong witch is killed. Things just go downhill from there. It seems that one of the witches - or someone or some thing - has put a curse on Hunter, a curse which is transferred to his young son.
The thing about Mr. Cottam's books? The intense sense of atmosphere, which is often dark, ever menacing, always uncertain. Even in his cozy house in Scotland, where he takes his son - who's having nightmare visions btw - you can never feel one hundred percent safe. (Safe? What's that?) As his son's condition worsens he calls in the local doctor, a woman with a dicey background of her own that goes back generations. You just never know with any of this who's good, who's bad, who's a threat, who's a possible savior.
But the scenes of Hunter trying to work this all out, protect his son and end this 'curse,' (if there even is one), are great, especially when he's climbing his way to a castle atop a mountain. I've seldom read descriptions which are so mesmerizing as Hunter makes his way from room to room while behind him something - or some thing - follows. There's a guillotine up here, an electric chair and a conference-type room which would have made the leaders of the Third Reich feel right at home.
And as for the character known as 'Mrs. Hall,' - imagine Cruella de Ville times a hundred.
A great read on a stormy night - or on a sunny day with thudding gray clouds in the distance.
Five stars.