As he was to do later, in Solomons Seal, Hammond Innes, here, indulges his tendency to conduct the reader through a specialist's understanding of an arcane subject area they might have little exposure to. In Solomons Seal, it would be the often obscure world of philately, or stamp collecting. With Levkas Man, it was the much broader and much more challenging subject of anthropology and the study of early man.
Innes' story unfolds gradually, as does the mystery at the core of it. Set against the backdrop of the Aegean Sea, however, such a pace is fitting. Not only does the very atmosphere of the warm Mediterranean world seem appropriate to the slow moving structure of the plot, so does the mystery and search to solve it fit into the timeless world of ancient artifacts, smugglers, and the embattled race to find the record of early man's entry into the sea's islands. Meanwhile, as ever seems to be the case, all is threatened with the onslaught of yet another war in the Middle East. Not even the soothing landscapes of an older world can escape the threat of imminent destruction wielded by modern man, who is only following in the violent footsteps of his ancient forebearers.
Finally, a note about the protagonist, Paul Van der Voort. Something enjoyable about Innes is that he creates some very flawed heroes. And Paul Van der Voort is among his more flawed. That does nothing, however, than make his story all the more interesting and unpredictable. The details of life often get in the way of neat little resolutions in Innes' novels. So it happens, here. Rootless Paul is as much a mystery at the end as he was in the beginning. That doesn't mean the exploration of his character--and his relationship with his father--was anything less than complete. Just that people often retain something unknowable about them, often unknowable even to themselves.