Series: Radix
by Author A.A. Attanasio
Book
The Last Legends of Earth (1990)
Spoiler free summary: An alien archaeologist digs through dead Earth's past to use humans as bait for the purpose of intergalactic pest control. Humans don't like being bait for alien spiders who drink their neurological pain endorphins, so they resist, ally, or betray one another to the extermin...