Sixth Wave

Logically, the Sixth Wave of House Military came in the long gap between the Fifth Wave, which began in the 25th year of the War in Heaven, and the Seventh Wave, which began in the 38th year. However, the House Military insisted that no Sixth Wave ever existed.

During the War, the Great Houses often feared that the enemy might be able to corrupt their breeding-engines, which might have caused the Sixth Wave soldiers to retro-annul themselves at birth or to be born supporting the enemy.

The Book of the War referred to a non-existent entry on "Sixth Wave Defections", apparently expunged by the enemy. (PROSE: The Book of the War) Michael Simpson stated that "mutineers from what was once the sixth wave" was one proposed explanation for the enemy. (PROSE: Pre-narrative Briefing C)