Irravel's Moon was a moon of the planet Fand. Circa 2378 a group of hyperpigs took eight Conjoiner soldiers captive on Irravel's Moon. After the captives refused to share Conjoiner secrets the pigs began eating them alive. Only a single Conjoiner managed to escape, whereupon the memory of the horror of the experience was transferred to their commander: Nevil Clavain.