Earth was a crippled world, the victim of its playing with nuclear fission and fusion. But the techniques that gave them a faster-than-light drive gave them as well a weapon that threatened solar systems, not cities; that could detonate a sun as readily as uranium could destroy a building. The child with his forbidden matches was now sitting atop a munitions dump; the danger was no longer a seared hand or blinded eye, but annihilation.
And the decision had been made: secrecy. By what condign struggles the secrecy had been enforced, the secrecy itself concealed. But it had worked. Once the radiating colonizers had reached their goals, the nucleophoretic effect had been obliterated from their records and, except for a single man on each planet, from their minds.
Why the single man? Why not
