This brave book tackles transatlantic characters (remember the "two countries divided by a common language"?); paranormal themes (some sort of connection between a Welsh manor inherited by the main character that has a ghostly (and occasionally painful) link with a battle between Druids and Romans; physical attraction between the main character and his Welsh attorney (it is hard to say more--she objects to his friendliness to the "office tart" but does not appear to hold on too tightly to her own virtue); the occurrence of Spontaneous Human Combustion replete with a reference to Dickens' infamous espousal of that theory, etc. etc.
I say brave because the author does so using the voice of his main character, a first person narrative. This makes for greater immediacy in the telling but confuses the line between character and author. The character strikes me as being somewhat dense and ditzy which must surely not be true of the author, although I question the wisdom of writing a volume of a trilogy that does not stand on its own.
Very little is developed of the characters or the plot except that the main character has accepted the inheritance (from a WW2 veteran of the Anti-Occult Bureau of Military Intelligence) and moved to Wales to take possession. It is also established that the chapel on the grounds might incorporate megaliths similar to those at Stonehenge (which dates about three thousand years before the Romans were in Britain). But, for example, of the Aztec Speculum and how it came to be in the possession of Doctor Dee, astrologer to Good Queen Bess, we learn not a word. The invasion of perhaps an alien species, the Thules, is mentioned just once. Towards the end of this volume, "dark forces were gathering, threatening to burst upon us, and unleashing the fiendish power of half-forgotten Celtic lore with annihilating force." For an inkling of why this is so or how it has come about let alone how this will all end, one should presumably read the other volumes.
Whatever the author gains by using the first person narrative is in my opinion outweighed by the personal quirks of his main character: London versus New York time difference--is London ahead or behind, the question is just too "precious." British postal stamps are hardly "garish" compared to U. S. P. S. commemoratives. "Crimson" roses are unheard of except perhaps by a New York marketing executive on hallucinogens. A graveled driveway that "meandered" through the manicured lawn does not describe what we have learned about English graveled driveways from Downton Abbey.
But I digress. This book is breezily written and it leaves us wanting to read the other volumes to find out more. It is a good appetizer.