"Here's a lovely thing," Petal said, touching a rosewood cube the size of Kumiko's head. "Battle of Britain." Light shimmered above it, and when Kumiko leaned forward she saw that tiny aircraft looped and dived in slow motion above a gray Petrie smear of London. "They worked it up from war films," he said, "gunsight cameras." She peered in at almost microscopic flashes of antiaircraft fire from the Thames estuary. "Did it for the Centenary."