Both The Martian Incident and Lag Delay are $0.99/£0.99 along with a ton of other great books – I recommend The Halley Traveler by Mike Mollman and After Moses by Michael F. Kane but I have yet to see a book there that I haven’t liked.
https://basedbooksale.substack.com/p/2025-spring-based-book-sale
Go check it out!
Ryan M. Patrick 
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