As related in God Emperor of Dune (1981), Tawsuoko is sent (with Chenoeh) by Syaksa to Arrakis on a fact-gathering mission in 13,725 A.G. In addition to the record of Chenoeh's somewhat enlightening conversations with the God Emperor, she and Chenoeh bring back to Chapter House proof (in the form of a written eyewitness account of Lord Leto's statement) that, as rumored, Leto executed nine historians in 12,333 A.G.
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