Graham Hancock is not an ideal source to be using, however, what he is describing is nothing like the great flood as described in the OT. And like I said, once the cherry picking starts, this part or that detail is inconvenient, we'll ignore it, the biblical account of Noah's flood becomes meaningless. It falls apart. It shows that the biblical flood is merely and embellishment of older flood stories that are probably based on extensive flooding as the ice age went into decline.
