Advance Agent is a science fiction novel by Christopher Anvil. It follows the story of a group of scientists who are sent to a distant planet to investigate a mysterious signal. The signal is coming from a long-lost alien race, and the scientists must find out what it is and why it is being sent. Along the way, they must battle hostile aliens, strange creatures, and their own fears as they try to unravel the mystery. As they explore the planet, they discover secrets that could change the course of human history.
By Christopher Anvil · First published 1957 · Genre: Science Fiction, Adventure, Fantasy · 6 chapters