The "Warhammer 40k Thousand Sons Codex Heretic Astartes" is an Army Book for Chaos Space Marines in the Warhammer 40K universe, specifically focusing on the Thousand Sons chapter. Published by Games Workshop, it provides rules and background information for players using this army in the tabletop wargame. The book is in English and is a valuable resource for fans of the Warhammer franchise.
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