Ace Double D-362 (35 cent cover price) 1959 paperback. Condition is VG: tight and almost square with flat spine (which shows some edgewear, and wear at each end - see scan); light to moderate overall wear (faint finger-creases and the like.) Age tanning is mild to moderate and uniform (consistent with its vintage; yet insides of covers are amazingly white.) Bookstore stamp and price inside cover of Brunner half; faint price at top of same half - no other marks or writing.

Ace Double D-362 (1959) - The 100th Millenium by John Brunner, bound with Edge of Time by Donald A. Wollheim writing as “David Grinnell." This is the first paperback appearance for either novel.

The 100th Millenium (cover by Ed Valigursky, 110 pages) - an expansion of "Earth Is But a Star" from Science Fantasy June 1958 (and later expanded again to Catch a Falling Star in 1968.) P. Schuyler Miller had great things to say about this side when he reviewed it:
"This is one of the biggest bargains from Ace in some time, mainly for the original half by an English writer... Brunner's story, fairly short, is a vision of the far future that has something of Dunsany's early tales of the lands at the edge of the twilight, something of Arthur Clarke's poetic self... The cover, incidentally, is a piece of phony sensationalism that has nothing to do with the story.

We are taken to a city of the 100th millenium, when our time is long forgotten - even as are the names of the first pre-Neanderthal chieftans are to us - and to the city of historic dabblers, each dreaming in his favorite bit of the past in the great, vegetable House of History, then reliving it in a daydream world whose subtle decadance cuts as deeply as anything Fritz Leiber has shown us. Creohan, restless dilettante at astronomy, learns that a star will smash into the Earth in a century or so; he sets out only to find someone who cares, then in company with the girl, Chalyth, and others whom they encounter, begins to scour his unknown world for people who can do something to save his world.

The nightmarish fascination of this distant future Earth is a creepily beautiful job of story-telling that haunts you long after the book is laid down." [P. Schuyler Miller, in Astounding/Analog February 1960.]

(Bound with) Edge of Time (cover by Ed Emshwiller, 145 pages) - first published by Avalon Books in hardcover in 1958. From P. Schuyler Miller's 1959 review (which was quoted as the back cover blurb for a later edition):
"Here is an excellent idea rather well developed… one of the best of the recent Avalon titles. The gimmick - which has one built-in error that the author keeps nudging - is that a group of scientists have succeeded in creating a universe-in-miniature on an upstate New York mountaintop. They have created a primal superatom… which explodes into the cosmic fragments of which stars and galaxies are eventually made. All this, confined by a force field, takes place in a large room in our universe, but in its own space-time is of full galactic scale. In this pocket galaxy the evolution of stars and planets takes place with - to the observers - lightning speed. They watch the evolution of our own universe recreated, the coming of life on various scattered planets, the evolution of intelligent races, and the rise of civilizations. By watching as these imprisoned cultures reach and pass our own level, they hope to watch a counterpart of our future and to reap the science of many races, through many thousands of years."