The Drofen Horde, also simply called the Drofen, were a carnivorous race from Monoceretos.
The Drofen were once fierce warriors, but eventually signed a galactic treaty agreeing to only carrion. They began scavenging worlds looking to consume their dead. They would often land during a war and covertly consume the bodies of those killed in battle.
Thousands of years after the galactic treaty, a Drofen ship landed in Stalingrad during World War II. They began consuming the dead and the living. Erimem called for the Drofen to return the living and dead they had stolen and return to space. When the Drofen leader refused, she instructed Yuri Kurkov and his soldiers to bomb their ship. (PROSE: The Beast of Stalingrad)
The Drofens returned in the future after they were thought extinct. They wiped out all life in the Venulatu system, and then went on to attack the Andromedan Princess, killing all on board. (PROSE: Absolution)
At some point prior to his retirement, Alistair Gordon Lethbridge-Stewart encountered the Drofen, whom he knew as "cannibals". (AUDIO: New Pastures)
In 2019, a Drofen escaped the captivity of a hooded figure in London. It killed a human beneath Hammersmith Bridge. (PROSE: What Lurks in the Shadows) The Drofen was unaccounted for by PROBE for some time until Azacca Dixon encountered it on the lead up to perihelion. The Drofen assaulted a human called George Wallace and Az shot it until it died. (PROSE: Preternatural Nights)