2110 nearly 100,000 humans had fled the civilized strictures of the galactic milieu for the freedom they thought existed at the end of the one-way time tunnel to earth, six million b.c. But all of them had fallen into th...2110 nearly 100,000 humans had fled the civilized strictures of the galactic milieu for the freedom they thought existed at the end of the one-way time tunnel to earth, six million b.c. But all of them had fallen into the hands of the tanu, a humanoid race who'd fled their own galaxy to avoid punishment for their barbarous ways.