It was an exciting read, but as with many Templar stories, it difficult to place ancient religious artefacts with magical powers into a modern believable setting. The legendary Emerald Tablet doesn’t exist, and Moses never used it to perform the miracles he did, neither was Moses a tyrant, or an Egyptian God. I think I’d have taken it more seriously if it had been an ancient relic that was 100% make believe, instead of a relic that may or may not exist, and if it did, wouldn’t have had magical powers.
Knowing these facts takes the edge off the story, which is a shame, cause it was a good story. A treasure hunt, with the treasure hunters being pursued by a sadistic killer, that will stop at nothing, to accomplish his masters will.