Page "Leto Atreides II" Paragraph 15

At the same time as Leto is breeding a psi-invisible human, Ix invents another solution: no-chambers.

A no-chamber is an electro-mechanical construct that hides its contents from prescient vision.

Inside the first no-chamber, the Ixians grow their next attempt: Malky's niece, Hwi Noree, who shall replace him as Ix's ambassador.

Hwi is the opposite of Malky, a creature of pure goodness.

Where Malky failed, Hwi succeeds.

Leto falls in love with her, and plans to marry her.

He is not alone in loving her, however, for his current Duncan has also fallen to her charms.

By this chain of events, Leto weakens his godhood enough to allow Siona's revolt the possibility of success.