The Mysterious Planet.

History The voluminously researched website West End at War has the message form reports of an incident at Marble Arch tube station on 17 September 1940 when:

"(A) bomb penetrated the station roof, pierced between two girders and plunged into the tube station below. It exploded in the tunnel, ripping the ceramic tiles off the walls and sucking its way through the tunnel and platform. The blast effect was magnified in the enclosed space, creating more casualties than usual for this type of bomb. At least twenty people were killed and over forty others were seriously injured."

The incident offered a valuable lesson in how to deal with mass casualties during the Blitz. But the necessary minimalism of the comments in these reports, scrawled in pencil must demonstrate the frequency of these incidents and the lack of time available to provide much detail beyond times and statistics.