Sylvester was created by Mr. Hayle as part of Project Wyvern.


Fine boned, narrow chinned black and messy hair. Very short. Green eyes.

Project GoalEdit

To test run the Wyvern formula and see the results of long term use, and how much could be used before the formula destroyed the users mind. Was placed on the Lambs project after the discontinuation of Evette and Ashton, subletting them in the Lambs as resident social manipulator and strategist. His project based around taking a modified version of standard Wyvern.[1]

Due to body chemistry is highly resistant if not outright immune to many diseases and parasites.[2] At the same time this also makes it hard to use various medicine on the subject.[3] For the same reason he is shorter than his pattern should allow for, has a different texture to his hair and nails, and is effectively sterile.[4]

These modifications do not make the subject hazardous to people,[5] beyond a psychological sense.

Subject had his throat modified so that opening it wouldn't remove his ability to communicate and castigate his opponents.[6]

Expiration DateEdit

Likely some time before he is 22, due to degradation of his brain and body through over-use of the Wyvern formula.



Was injected with regular, heavy doses of Wyvern from the age of six. Joined the Lambs as the social manipulator following other experiments being canceled.

Ran away at one point but let himself get caught be Dog and Catcher.[7]


Convinced Mary to betray her creator and join the Lambs.


Developed a relationship with Lillian but was forced to break up with her after learning his relationship with her was preventing her from obtaining her dream of becoming a Professor. Mostly engaged in the relationship to fulfill a mutual need for physical comfort, and to become closer to her, knowing that she would live the longest of the Lambs and hoping she would remember him for who he was after he died.


He helped kill 3 of the Twin nobles in Lugh, and later killed their brother the Baron, to protect the other Lambs and the people they knew, as the Baron and threatened to torture and kill all of them. Killing the nobles caused Sylvester to become a fugitive, and he fled from the Academy after shooting Mary in the kneecap so she couldn't chase after him, as that would cause the other Lambs to be placed under suspicion of being on Sylvesters side. Was later joined by Jamie, but no other Lambs came with him.


Became a rebel leader


The tall and elegant Lord Simon welcomed the King to the crown states.

References Edit

  1. Lillian turned to Lacey, who immediately recited, “Ifosfamide, carmustine, felotane, venenum A through G, I, N through P, and T.”

    “That’s familiar enough. Depending on other ingredients and ratios, could include the combat drug Cicuta?” the headmaster asked. “Or C-G Temero?”

    “Wyvern,” Lacey said. “Modified, and in high P-concentration, for Sylvester’s project.”

    “Ah. I’ve used that regularly enough, often with other drugs to dull the pain after injection,” the man said. “Should I have my people look for any stolen pain medications? I’d imagine he’d have some dependencies.”

    “None,” Lillian said. “The P-concentration is too high. He took doses high enough that nothing would put a dent in it, from the beginning to the present.” - Excerpt from Black Sheep 13.2
  2. Head over Heels
  3. Drugs didn’t work so well on me, be they stimulants, depressants, hallucinogens or the performance enhancing sort. The reasoning for why was much the same reason that poisons, diseases and parasites didn’t find much traction in my system. I’d built up tolerances to most things, and had been given medicines and drugs to help my body cope with the toxic loads that wyvern put into my brain and blood. I could take some drugs, if they were concentrated enough, but once certain volumes and tolerances came into play, there was often a very thin margin of ‘the drug works’ between ‘doesn’t work at all’ and ‘kills Sy’.

    But many poisons could double as a medicine, given the right dosage and method of application, and many drugs could double as poisons. That was useful, and poison served as a weapon both Mary and I had some experience with. - Excerpt from In Sheep’s Clothing 10.11
  4. “I will expire before I’m twenty-five. Very possibly before I’m twenty, because of what they did to me. I’m sterile, because of what they did to me. I will never have children, experience a family, or hold a job. I’m not saying this because I want pity. But it’s my reality. And I’m not alone in it.” - Excerpt from Dyed in the Wool 12.12
  5. “Bite him, Hubris.”

    Hubris opened his mouth, moving toward my hand.

    “You don’t want to do that,” I told the mutt. “I’m poisonous.”
    “I know you like to say so, Sy, but you’re not that poisonous,” Lillian said. “It’s not like you spit nightshade and pee cyanide.” - Excerpt from Bleeding Edge 8.10
  6. In Sheep’s Clothing 10.19
  7. Stitch in Time 4.3