The Murder of Dr. Armando Costa

Lisbon is humming. But it isn't the music of Fado.

When eccentric detective Charles W. Radcliff III arrives in the "City of Seven Hills," he expects a retreat from the macabre. What he finds is a corpse coated in conductive cobalt-blue dust and a villa that functions more like a tuning fork than a home.

As historical tapestries vanish from the city's grandest halls, Radcliff and his stoic assistant, Reginald Pickering, uncover a terrifying truth: these stolen treasures were more than art-they...