In this cerebral novel, the capstone to British author Stableford's (Inherit the Earth, etc.) much praised six-volume future history concerning the search for "emortality" (technologically assisted near-immortality), Madoc Tamlin, a 22nd-century shyster with a heart of gold, is defrosted after more than 1,000 years in suspended animation, only to discover that his awakening has been nothing more than a trial run for a more important revival. The posthuman emortals of the 35th century are preparing to bring back Adam Zimmerman, aka the Man Who Stole the World. Zimmerman, whose takeover of Earth actually saved the planet from environmental collapse in the 21st century, is the near-mythic founder of the movement that led to the emortal, posthuman culture that now inhabits our solar system. As Tamlin learns more about the society into which he has newly awakened, he discovers that it contains a number of rival factions, each of which espouses a different sort of emortality. Stableford does a fine job of pulling together an enormous number of loose threads. If his characters are sometimes flat, his presentation of the possible marvels of posthumanity is quite compelling, as is his thoughtful examination of the potential involved in near immortality. Readers who stick with this complex, intellectually challenging series to the end will find their tenacity well rewarded.