Drifting through interstellar space, three light-years out from the star 31 Aquilae, the Neána abode cluster picked up a series of short, faint electromagnetic pulses that lasted intermittently for eighteen years. The early signatures were familiar to the Neána, and faintly worrying: nuclear fission detonations, followed seven years later by fusion explosions. The technological progress of whoever was detonating them was exceptionally swift by the usual metric of emerging civilizations.
