An alien named Yusharisp comes to Earth to warn its remaining inhabitants that the universe is coming to an end; his own planet has already disappeared, and the Earth is sure to follow. Earth's inhabitants are unfazed as they believe him to be yet another doomsayer; the End of the Earth has been predicted for centuries. Jherek is far more interested in Mrs Amelia Underwood, a time traveller from Victorian England, as he is fascinated by the Victorian era. Jherek resolves to fall in love with her. Mrs Underwood, at first repulsed by the debauchery of the End of Time, finally comes to believe that Jherek is sincere in his affections and starts teaching him about moral values. She falls in love with him at last; as they are about to embrace, however, she is whisked back to her own time. Jherek, heartbroken, decides to rescue her, and travels to 19th century London.
Jherek is inexperienced to the point of naivete about the Victorian Era, despite his interest in it, and a (temporally) local thief, Snoozer Vine, tricks him into becoming an accomplice to Snoozer's latest scam. Not surprisingly, Jherek proves to be a poor criminal, and is quickly arrested, jailed and sent to trial. To his surprise, the judge appears to be none other than his friend, Lord Jagged but claims to be one Jagger. Jherek is sentenced to death, as the case against him is unequivocal, but he cannot understand why all the people around him are so upset; inhabitants of the End of Time are immortal, and for them death is merely transitory. Jherek is hanged, only to wake up among his friends at the End of Time, who tell him that to them, he has only been gone for a second.
This is the first Avon paperback printing.