|This article is about the Tyranid Hive Fleet; for the city on Traoris, see Lotan (City).|
On the Jungle World of Hesp, the forces of Lotan clashed with the 4th and 7th Plague Companies of the Death Guard. When the swarms deployed Toxicrenes and Venomthropes to poison the environment, the Death Guard responded with plague spells, virus bombs and daemonic diseases. With neither side willing to back down, the atmosphere of Hesp became ever more toxic until the jungles, and even the warring armies, were reduced to a gory, bubbling soup. The first Tyranid hive ship to taste this poisoned biomass recoiled with its proboscis melting, and was bombarded into oblivion by the rest of its fleet. Hesp was left as an endless sea of toxic slime, too virulent for even the hive fleets to devour.