 In "God Emperor of Dune" (1981), the Truthsayer Marcus Claire Luyseyal comes to Arrakis in 13,725 A.G. with Anteac for an audience with the God Emperor that coincides with the Royal Festival held every ten years.They receive a message from Othwi Yake, Assistant to the Ixian Ambassador, that Face Dancers have infiltrated the Ixian Embassy, and are planning to assassinate Leto II.Anteac and Luyseyal try to warn Leto, but the message does not reach his convoy in time; however, the plot fails, as Anteac and Luyseyal knew it would.