Templar Sanctuaries in North America: Sacred Bloodlines and Secret Treasures

The book is mostly speculation. The problem in establishing whether or not the Knights Templar actually had sanctuaries in North America is two-fold. First, America is an active country, both weather-wise and human-wise. Any structures or bits and pieces they might have left behind have a great chance of being buried over time and thus finding ones that are, without a doubt, from that time, from semi-permanent settlements and also from the Knights Templar is not very high.

Secondly, even if artifacts would show up in considerable numbers does not mean that mainstream archaeology would accept them as real. Such artifacts would challenge commonly held beliefs about who populated North America, when and where they were. It's made even more difficult by the belief that the Knights Templar had some kind of treasure and may have played a part in the Holy Bloodline which, itself, is massively controversial.

If artifacts could be found in Europe, say, that could be proven to come from pre-Columbus times and also were directly linked to the Knights Templar in North America and were not fakes then that might help provide weight to the theory of the Knights Templar being in pre-Columbus North America.

As it is, though, the book is interesting but does not have enough proof behind it to be anything but controversial speculation.