Adventure/detective novel - fast paced. Not entirely predictable.
Quite a bit of detail about Charlemagne, mysticism/clues from ancient sites etc.
Quite a high body count.
A little confusing sometimes about who/where as story moves between Europe/USA/several character 'groups' & women's voices a little quiet.
Story ends with suspense of new adventure (footsteps on staircase) for Cotton Mallone