After Lord of Light, this one (1976) is probably Zelazny's best-liked science fiction novel. The inventive plot involves a frozen uncle, realistic bad guys, and undercover alien cops. It has wacky inventions: dog suit so alien coppers won't be conspicuous on Earth; a Rhennius machine for reversing one's self and others; and a star stone, the function of which cannot be revealed in a review. The likeable hero Fred Cassidy is an eternal student (a wise-acre polymath, similarly to other Zelaznian protagonists) and a parkour artist before parkour was cool. Zelazny's ideas were copious and odd, but, in the context of the universes in the stories, also consistent and reasonable.

Laura P. (
sfreadergrl) - Denver, CO wrote on 8/17/2006...
Interesting and action packed, aliens and surprise twists.
I remember this as being a decent sf adventure.