"Hugo Marston must figure out what lies hidden inside an old sailor's chest before a 200-year-old blood promise is revealed and claims another life. In post-Revolution Paris, an old man signs a letter in blood, then hides it in a secret compartment in a sailor's chest. A messenger arrives to transport the chest and its hidden contents, but then the plague strikes and an untimely death changes history. Two hundred years later, Hugo Marston is safeguarding...

"Hugo Marston investigates the death of a friend at the American Library in Paris and discovers a mystery dating back to World War II"-- "Hugo Marston's friend Paul Rogers dies unexpectedly in a locked room at the American Library in Paris. The police conclude that Rogers died of natural causes, but Hugo is certain mischief is afoot. As he pokes around the library, Hugo discovers that rumors are swirling around some recently donated letters from...

"Winter 1940: With soldiers parading down the Avenue des Champs-Élysées, Nazi flags dangling from the Arc de Triomphe, and the Eiffel Tower defaced with German propaganda, Parisians have little to celebrate as Christmas approaches. Police Inspector Henri Lefort's wishes for a quiet holiday season are dashed when the Gestapo orders him to investigate the disappearance of Dr. Viktor Brandt, a neurologist involved in a secret project at one of Paris's...