Fay Weldon's latest novel, The Spa , is full of all the biting humor and glittering prose that made her name. Always sharp tongued and occasionally libidinous, it offers a glimpse of the despairs and dalliances of a set of high-powered women who have burned paths through--and sometimes been burned by--their worlds and the men in them. It is the week between Christmas and New Year's, and ten high-achieving ladies are gathered at the expensive Castle...