The Neurothrope is the highest advancement of the Zoanthrope bioform, synaptic monsters that leech the mental energies of their prey to fortify their own underdeveloped physical shells. The Aeldari believe these psychic parasites to be the spawn of an abomination they call the Doom of Malan’tai, which devoured an entire craftworld with its foul powers. On the battlefield, they act as a pulsing nexus of the Hive Mind’s psychic might, channelling alien impulses into an eldritch onslaught.