Danger UXB is a movie.
 The liquid-oxygen fire in "Dead Letter" while Ash was defusing the Type Y fuse is covered on pages 152 and 153
 Chapter 8 covers the Grimsby Raid of June 13, 1943, which forms the basis for "Butterfly Winter" and includes the development of the string-and-pulley system for moving the SD2s about, the bombs in the bean field, and the inspiration for Sergeant James being blown off the stone wall and breaking his arm

