House of Strange Gods by Melusine Draco
The current members of the Temple House, or 'the Nine' as they are referred to in memory of the original nine founder members of the Order, are all specialists and magical practitioners in the diverse fields of occultism and its relevant histories. When journalist Michael Gilmour discovered a small filler in a tabloid newspaper about the 'witch busters' of Temple House, he believed they were the right people to help him discover the reason behind his father's disappearance back in the 1970s following an investigation into the desecration of a rural church. What he discovered was even stranger than anything he could ever have imagined in his wildest flights of imagination, which almost results in his own death in an act of premature burial from which he is rescued in the nick of time.