Eiji Otsuka (W) and Housui Yamazaki (A)

Heads up! That's what the Kurosagi crew sees floating in midair . . . above a moving motorcycle! But this headless horseman in reverse is linked to a corpse that can be smelled and felt . . . but not seen! Then, the mystery moves from sight to sound, as the last words of an elderly veteran reveal the hideous crime behind a secret program of World War II-whose effects can still be heard . . .