The Sex Sphere

When Alwin, a disaffected young physicist, takes a vacation in Florence with his wife Sybil and finds himself kidnapped by terrorists, he is soon wrapped up in a potentially world-changing - and utterly bizarre - plot. It's not just that the terrorists are building an atomic bomb, which they want Alwin to help with, and it's not just that he is desperately attracted to one of his captors. It's that they have trapped a weird, four-dimensional creature of hypermatter who happens to resemble, well, a spherical naked woman. And who absolutely oozes mind-clouding, desire-inducing pheromones... Before they know it, Alwin and Sybil are both discovering the pleasures and curiosities of the sex sphere, while on the run from the various forces chasing them. But what is the sphere itself, really? Why is it stuck in our dimension? And what does it want in the end?