The Black Grippe by Edgar Wallace is a dark and compelling tale of mystery, fear, and the invisible menace that strikes a city without warning. When a deadly epidemic known as the "Black Grippe" sweeps through London, panic grips the population. But as the death toll rises, it becomes clear that this is no ordinary illness—something far more sinister is at play. A determined detective and a brilliant doctor must race against time to uncover the truth behind the plague. Is it a natural disaster, or a diabolical plot to bring the city to its knees? This pulse-pounding thriller will keep you guessing until the very end.