Dead Giveaway

Dead Giveaway is a science fiction novel by Randall Garrett, written in the late 1950s. The story follows Dr. Dave Turnbull, who investigates the mysterious disappearance of his mentor, Scholar James Duckworth, after receiving alarming letters hinting at Duckworth's research on the planet Mendez. As Turnbull uncovers secrets tied to the ancient alien civilization of Centaurus City, he confronts profound questions about humanity's place in the universe and the significance of the artifacts left behind. The novel explores themes of knowledge, cultural mysteries, and the existence of advanced beings observing humanity.