Doppelganger

Avon couldn't decide what fascinated him more, the similarities or the differences. Or the differences he could see in the clone which by now must be in fact similarities. The wild mane of curls, much longer than Blake would have allowed it to grow, had been bleached by the sun until it had acquired copper glints. But the same hair - and the full, unruly beard - was also liberally sprinkled with gray. That had to be genetic, so Blake's own hair would also look like this now, at the age of not-yet-forty.