A Story of What Might Happen In the Days to Come, When Underground London is Tunnelled In all Directions for Electric Railways, If an Explosion Should Take Place In One of the Tubes. A short story in the "Doom of London" series. Excerpts: There was a sudden splitting crack as if a thousand rifles had been discharged in the ballroom. The floor rose on one side to a perilous angle, considering the slippery nature of its surface. Such a shower of white flakes fell from the ceiling that dark dresses and naval uniforms looked as if their wearers had been out in a snowstorm. ... "An earthquake," somebody said at length. "An earthquake, beyond doubt, and a pretty bad one at that. That accounts for the failure of the electric light. There will be some bad accidents if the gas mains are disturbed." ...