Roadmarks - Roger Zelazny

The Road can go Anywhere. The Road can go Anywhen. Almost.

Red Dorakeen has been on the Road for a very long time. For all of time, in fact. It stretches infinitely into the future and past, with exits that take him wherever, or whenever, he wants to go.

But he can't find the place he wants to be. He's not the only one who can travel the Road, and as people join and leave, they can alter the past, or the future, to suit their whims. Exits close off, become overgrown, and working out what to change back to return to old timelines could take, well... forever.

Fortunately, Red has all the time he could ever need.