If you are looking for a physical copy, several editions are available from various merchants:
The narrative follows , a celebrated pianist and composer, and his friend John Sinclair , a brilliant scientist. Their journey begins with a hiking trip in the Scottish Highlands, where Sinclair mysteriously disappears for 13 hours and returns without a birthmark he once had—hinting that he is a "copy" or from a different timeline.
Exists in its "Golden Age" (roughly 425 BC), under the rule of Pericles. October The First Is Too Late
Have become a "Glass Plain," a desolate, fused landscape from a far-distant future where the sun has burnt out.
The duo eventually travels to a futuristic Mexico, thousands of years ahead of their own time. Here, they learn that the "present" world is an experiment by an unknown intelligence and that most of these temporal zones are "ghost worlds" destined to vanish soon. The novel ends with Richard choosing to remain in this future civilization, while John returns to his own time. Major Themes If you are looking for a physical copy,
The future civilization has abandoned "progress," having seen humanity repeatedly destroy itself through war and overpopulation. Critical Reception
Hoyle uses the characters (specifically Sinclair) as mouthpieces to discuss the idea that time does not "flow" but exists as a four-dimensional spiral where all points are equally real. Have become a "Glass Plain," a desolate, fused
: Used copies with classic Paul Lehr cover art are available for about $8.00 at Postmarked from the Stars .