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What if there was life on Mars in the ancient past? What if we colonized Mars in the near future? What would happen if those two worlds collided?

December 29, 2025 marked the tenth anniversary of the publication of Fourth World, and I'm celebrating in a big way: Presenting the

Iamos Trilogy 10th Anniversary Edition Collection!

Learn About the Collection

Shipping and Tariff Info
I am utilizing two printers for these editions: BookVault and IngramSpark. BookVault is the printer that is integrated with this shop. IngramSpark, unfortunately, does not offer integration. Which Books Are Being Printed Where? The Deluxe Editions a...
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Another World EP by RoAnna Sylver
Iamos Trilogy special editions are available now! Get yours here. In addition to the art swag, we've also got a special treat for fans who love soundtracks for their books: artist RoAnna Sylver has recorded a special EP inspired by The Iamos Trilog...
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Character Cards
Every person who orders one or more special edition hardcover (deluxe or standard) or paperback will also receive a six-card Character Art Card collection with original art of Isaak, Nadin, Henry, Tamara, Scylla, and Lizeth, illustrated by artist Me...
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Deluxe Edition Boxed Set
Each volume of the Deluxe Edition Boxed Set features a premium matte dust jacket with metallic foiling on the Iamoi medallion, the GSAF emblem, and the Stateless crest. There are also metallic foil accents on various elements across the jackets.  ...
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Special Edition Hardcover & Paperback Editions
Special Edition Hardcovers If you're looking for a collectible edition at a more economical price point than the Deluxe Editions, check out the standards Special Edition versions! The Special Edition version of the hardcovers will feature a ma...
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A Journey Across Space and Time
What if there was life on Mars in the ancient past? What if we colonized Mars in the near future? What would happen if those two worlds collided?  Hey! I'm Lyssa Chiavari, and I write inclusive young adult science fiction and fantasy. Ten ye...
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Two Worlds, One Destiny
His past is her future. IAMOS, S.C.D. 8378 Nadin’s planet is dying. As its atmosphere drains away, her people are forced to live huddled in domed cities for protection. With only enough resources to support the population for one more year, time is...
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About Me

Lyssa Chiavari writes inclusive speculative fiction for young adults, such as The Iamos Trilogy, a time-bending sci-fi series set on Mars, and Cheerleaders from Planet X, a tongue-in-cheek send-up of alien invasion stories. Her short fiction has appeared in a number of publications, including the anthologies Magic at Midnight: A YA Fairytale Anthology and Perchance to Dream: Classic Tales from the Bard’s World in New Skins, both of which she also edited. Her first published story, “The Choice,” was named one of Ama-gi Magazine’s Best of 2014. She lives with her family and way too many animals in Northwest Oregon.