Several large, artificial constructions are approaching us, ZORAC announced after a short pause. The designs are not familiar, but they are obviously the products of intelligence. Implications: we have been intercepted deliberately by a means unknown, for a purpose unknown, and transferred to a place unknown by a form of intelligence unknown. Apart from the unknowns, everything is obvious.

Giants' Star (ed. Ballantine Books, 1985) - ISBN: 9780345327208