Haran Serpens

Haran Serpens was a well known Magos Biologis, an adept of microbiology and replication.

After his death, his identity was usurped and used as an alias by Fabius Bile for a variety of purposes, such as trading with unsuspecting counterparties, and, in a notable instance, to confound and corrupt Apothecary Majoris Caecus of the Blood Angels. He thus managed to set foot on the Blood Angels homeworld and steal a vial containing blood of Sanguinius.