Maestro shadows

In the new novel by Donato Currizi, Maestro Shadows, Sandra Vega, a criminal photographer, and Marcus, a priest, investigating crimes, are again, are acted by only those who accept confession.
Five centuries ago, Pope Lev X published a mysterious bull, according to which the eternal city never, never, never should be plunged into darkness. But today, the storm has disabled one of the Roman power plants, and in order to completely restore power supply, the capital has to plunge into the darkness for twenty -four hours. A hidden evil comes to life in the approaching twilight. No one is safe, even those who locked the doors of two revolutions. A chain of murders stretches around the city, but who is a mysterious executioner, who presses on hidden springs. Marcus and Sandra have to find a source of evil until it became too late