This is rather less science fiction and more wish-fulfilment fantasy from Tepper, but is no less satisfying for that. Written prior to 9/11 it has a wistful Arthur C Clarke optimism in that the religious idiocy of fundamentalism can be dealt with, and dealt with in a humorous and compellingly satisfactory way.
Benita Alvarez, mother of two, is trapped in a loveless and abusive marriage to her violent and alcoholic husband, a man who planned to be an artist but never made it. One day, Benita is out picking wild mushrooms and is approached by two aliens, representatives of a galactic federation, who wish Earth to become part of a wider civilisation, and who offer Benita the chance to become the intermediary between humanity and galactic civilisation.
However, before Earth can become a member, humans will have to clean their act up, and the aliens are not prepared to wait for us to think about it.
Nanobots are scattered around the world, and various societies soon discover that they will have to change their ways. In Afghanistan, the men find that their women have become hideous which, the aliens reason, gives the males no more reason to lock their women away or force them to cover their faces when in public.
Jerusalem disappears overnight, and the aliens, in the manner of frustrated parents, tell the earth that it will be returned when we stop fighting over it and learn to play nicely.
Meanwhile, it is discovered that other, more predatory members of galactic society have also come to Earth, and have made secret deals with US politicians in order to use Earth as a hunting ground since Humanity has grossly overpopulated the planet and needs weeding out. Later, when another group of alien `peace-keepers' arrives to deal with the predators, it transpires that they are insectile forms who lay their eggs in living flesh, and having been called out at the wrong time, need hosts in which to place their larvae. Who better, the aliens reason, than those Pro-Life male politicians who pontificate endlessly about the evil of abortion. Thus, the politicians are given a lesson in what it is like to be pregnant and, more importantly, to experience the pain of childbirth, since when the larvae is removed at the time of hatching, no anaesthetic is allowed in case it interferes with the hatchling.
The third strand of the plot refers to The Fresco itself, an ancient series of paintings, sacred to Benita's aliens and central to their philanthropic values, whose patina is so stained with the candle smoke of centuries that no details can now be seen.
Many readers will no doubt sympathise with Tepper's clear and rational view of a world plagued with delusion and stupidity, and her common sense approach to the problems of the world. One has to ask, however, whether Tepper's view is that we can only be saved by abandoning control of our fates to others. If so, I am beginning to move toward her point of view.
Despite a somewhat Americocentric emphasis, this is a marvellous feel-good novel, and one finishes the novel wishing, on some level, that the aliens would come and sort us out. We could certainly do with it.