Simon and Schuster audio works presents Star Trek Time for Yesterday by AC Crispin.

This program is read by James Dewey, with Leonard Neymoy as the voice of Spock.

Time.

Most beings perceive it as running in only one direction, from present to future, from

now until tomorrow, and all that tomorrow is allotted to us.

All the years or days remaining in our lives.

But I have seen a different face of time.

I have traveled with backward, through the centuries, through millennia, not once, but several times.

I know the dangers of tampering with the past.

In a doomed world's bygone age I knew a woman named Zarabeth, who has loneliness succeeded

my own.

My son was born to her five thousand years ago, and grew to manhood on Sarpeton, surviving

alone for years in a desolate ice age.

When I learned of Zar's existence, I brought him forward to my own time, but he would not

stay.

He too knew the dangers of altering the time stream, and remaining in my present would have

changed his own world's past.

Zar returned to the Sarpeton of five thousand years ago.

Yet, it is difficult for me to think of him as dead.

Even though it has been nearly fifteen years, or fifty centuries, since we parted.

I think of Zar as someone still living on the other side of those millennia, not as someone

who has been dust since before the time of Sirac.

...