Henry Jekyll and Edward Hyde — The Divided Alchemist

Master Henry Jekyll is a respected London physician and alchemical scholar who tried to separate appetite from conscience. His draught succeeded too well. The result is Edward Hyde: physically different, morally unrestrained and increasingly capable of emerging without Jekyll’s permission.

The danger is not that Jekyll has been possessed by a stranger. Hyde is made from Jekyll’s own impulses, concentrated and given a body. Every attempt to deny that truth makes the transformation harder to control.

At a Glance

• Name: Master Henry Jekyll / Edward Hyde
• Species: Human, alchemically transformed
• Base: London
• Role: Physician, alchemist and violent transformed alter ego
• Alignment: Jekyll Neutral Good; Hyde Chaotic Evil
• Campaign status: Alive and active
• Campaign use: Alchemical mystery, tragic patron, fugitive, monster investigation or source of dangerous formulae

What Are Jekyll and Hyde Doing Right Now?

Jekyll has stopped preparing the original draught. That has not stopped the transformations.

Someone has stolen pages from his laboratory notebook and is producing an unstable imitation. Two violent incidents in London now show Hyde-like symptoms, but Jekyll knows he was elsewhere when they occurred. He is desperate to recover the copied formula before the city discovers both his secret and the possibility of making more creatures like Hyde.

Encounters

Meeting Henry Jekyll

Jekyll is courteous, rational and visibly exhausted. He speaks like a man trying to keep every sentence under control. He gives excellent medical advice, avoids questions about his sleep and becomes defensive whenever anyone suggests that moral choices cannot be solved by chemistry.

Meeting Edward Hyde

Hyde moves as though the room belongs to him until someone proves otherwise. He is smaller and more compact than Jekyll, but quicker and far more willing to turn a conversation into violence. He resents being described as merely part of Jekyll.

Appearance and Manner

Jekyll dresses as a prosperous physician and scholar. Hyde’s clothes fit badly after transformation, his posture changes, his face appears coarser and his movements become abrupt and predatory. Witnesses disagree on exact details but consistently describe the two men as physically distinct.

Personality

Jekyll is intelligent, compassionate and fatally skilled at self-deception. Hyde is impatient, cruel and exhilarated by acting without social restraint. The central conflict is not good man versus invading monster; it is one man’s attempt to deny ownership of his own desires.

Relationships

London physicians and apothecaries: Jekyll has professional contacts who can supply rare ingredients but would be horrified by his work.

Sherlock Holmes: Holmes has noticed that Jekyll and Hyde are never reliably seen together.

John Watson: Watson is more interested in whether Jekyll can be treated than in winning the argument about what Hyde represents.

Equipment and Resources

• Alchemical furnace, retorts, alembics and sealed vessels
• Medical instruments and herbs
• Locked formula book with several missing pages
• Rare mineral salts and imported reagents
• Walking cane, cloak and respectable household staff

Running Jekyll and Hyde at the Table

Do not make every scene a surprise transformation. The tension works better when the party understands the danger and must decide whether to protect Jekyll, expose him, cure him or use his research. Hyde should complicate those decisions rather than replace them.

Adventure Hooks

• The Second Hyde: someone using a stolen version of the formula commits a crime Jekyll is blamed for.
• The Missing Salt: the one reagent Jekyll needs to reverse the transformation has been bought up by an unknown patron.
• The Locked Laboratory: noises come from a sealed room after Jekyll insists he has destroyed every draught.
• Watson’s Cure: Watson believes the condition can be stabilised, but the treatment requires Jekyll to admit truths he would rather turn into chemistry.
• Hyde’s Bargain: Hyde offers the party information Jekyll genuinely does not remember learning.

Connected Places and People

• London
• Sherlock Holmes
• John Watson
• British Isles NPCs

Literary Inspiration

Henry Jekyll and Edward Hyde originate in Robert Louis Stevenson’s Strange Case of Dr Jekyll and Mr Hyde. This version translates the experiment into fifteenth-century alchemy and medicine.

Rules Notes

The transformation mechanics and campaign relationships are original adaptations for the stated rules editions.