This weekend (April 2 and 3, 2022) the first book in the 5-volume Exoplanetary Archaeology series will be free to download. Do enjoy! From the description:

Heading for Mars this weekend? Stop by New Toronto, Colony 7 to enjoy the Museum of Exoplanetary Archaeology. Because there’s more to Bradbury Ward than Asimov Park! And consider purchasing this full-color guide, which highlights more than 30 exhibits representing civilizations hundreds of parsecs distant and thousands of local cycles old. If you’re searching for intelligent life on Mars, look no further than this lavish introduction to the splendors of Coalition space!

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https://www.royalroad.com/amazon/B09K4H1VGG

https://www.royalroad.com/amazon/B09GKSS7KD