In the week before Guy Fawkes Night, London s peaceful streets break out in sudden unrest. Enraged by a scandal involving a corrupt financier accused of insider trading, demonstrators are rioting outside the Findersbury Private Bank, chanting, marching, and growing violent. But when someone hurls a Molotov cocktail at the bank s front door, killing a homeless man on its steps, Bryant, May, and the rest of the Peculiar Crimes Unit team are called in. Is this an act of protest gone terribly wrong? Or a devious, premeditated murder? Their investigation heats up when a second victim is reported dead in similar fiery circumstances. May discovers the latest victim has ties to the troubled bank, and Bryant refuses to believe this is mere coincidence. As the riots grow more intense and the body count climbs, Bryant and May hunt for a killer who s adopting incendiary methods of execution, on a snaking trail of clues with roots in London s history of rebellion, anarchy, and harsh justice. Now, they ll have to throw themselves in the line of fire before the entire investigation goes up in smoke.