| Category | Heroes |
| Region | Grashakh |
| Class | 21st Necromancer |
| Race | Cambion Tragaran |
| Gender | female |
| Title | Bitch of Bone |
| Alignment | chaotic evil |
| Deity | Orcus |
| Birthplace | Paradomea City |
| Born | 9 Saunas 1286 |
| Died | 3 Witchrite 1661 |
The daughter of an incubus and a Tragaran mother, Defilnus was born in Paradomea City. A cambion, like many of her ilk, she favored her demon side. She dual schooled in necromancy and evocation; the latter with a focus on fire.
In 1310, charged with practices against Paradomea's mercantile interest, namely raising undead and letting them wander, she was banished for a period of 15 years. Defilnus left with a large band of mercenaries, traveling deep into the northern highlands. In 1312 she began work on her Bone Keep.
In 1425, contracting for the Orchish Empire, Defilnus established a school of necromancy in the city of Argruxiel. Failing to pay attention to the details of her contract, while heading this school, she became the headmistress of a cult dedicated to Orcus.
In 1446, Defilnus and Monty the Mad, then a mercenary in the Orchish Empire, began a long affair with years and decades as gaps. Even after Monty became a death knight in 1501, the pair were seen at grand ceremonies across the empire, decked out in regalia worth millions, and dangerously powerful.
In 1660, the Emperor of the Orchish Empire, Blac'drugulois, approached Monty the Mad with an offer he could not refuse. The Emperor offered him the title Arch-Dragern of the Armies, but with a catch. Monty had to kill the one he loved to prove his loyalty to the emperor. Monty's lover, the power necromancer Defilnus had at her command, a guild chapter of the Rat Swarm. Wererat spies of this guild learned of the deal between Monty and the Emperor not long after his departure from Gháshulg. When Monty returned to Collossapolos, Defilnus was entrenched in her fortress, and little did he know that Defilnus had an underground labyrinth of unimaginable size spanning four levels under Collossapolos. It took a year to finally track her down and carry out the Emperor's bidding. When Monty carried out the task of killing Defilnus, a powerful curse was activated. The weapon that was enchanted by Defilnus and then given to her former lover, a relic called Tiamats Spur, became the focus of the curse. Tiamats Spur teleported away from Monty, yet still rather close, and he knew that from a felling inside of him, that it was somewhere in or under Collossapolos.