For starters, the cover really doesn't sell this book. I had the option of reviewing it, and kept passing it up, just because the cover is so unappealing.
Still, I love a good Indiana Jones-esque treasure hunt, so I figured I'd give this book a try. I kept picking it up, hoping it would get interesting, but I'd end up putting it down after a few pages.
After a while, the story picks up, but even then, the characters are "stock," the plot twists are pretty predictable, the bad guys are all Islamic or secular, and the good guys are all Christians/Jews.
Overall, it's not awful, but neither was it especially good. This is why I give it three stars.