The position of every bomb has been precisely arranged in solar orbit so that this flickering will generate a signal transmitting three simple images of the sort I sent out two centuries ago: each image an arrangement of thirty points, with one labeled, for composition into a three-dimensional coordinate diagram. But, unlike last time, the position will contain the transmission of Trisolaris relative to its surrounding twenty-nine stars. The sun will be a galactic lighthouse casting that spell, in the process, of course, also exposing the position of the sun and Earth.
