When a one-way time tunnel to Earth’s distant past, specifically six million B.C., was discovered by folks on the Galactic Milieu, every misfit for light-years around hurried to pass through it. Each sought his own brand of happiness. But none could have guessed what awaited them. Not even in a million years… Won Locus Award for Best SF Novel in 1982. Nominated for Hugo Award for Best Novel in 1982