Thistlewick Phial’s Potion Shop

Shadowdark Scenario by JSG Press

Small Paws. Big Alchemy. Massive Trouble.

The city’s greatest alchemist, Thistlewick Phial, has a problem. He’s currently a six-foot-tall rooster, his shop is a magically mutated death trap, and his most dangerous secrets have been stolen by a common weasel.

The city guard won’t fit in the pipes, and the local wizards are too busy laughing. The world needs heroes—they just need to be mouse-sized.
The Tall Tale of a Tiny Heist

When a batch of “Enhanced Intelligence” potion leaked into the sewers, it didn’t just create a mess—it created a monster. A weasel calling himself King Ermine has seized the Master’s Grimoire and is holding the shop’s secrets for ransom.

Without his book, Thistlewick is stuck “Cock-a-doodle-dooing” in a loop of brewing mishaps. His shop is transforming into a vertical dungeon of chemical ruins, and only a party of brave mice can navigate the pipes to get the Grimoire back.

Inside this adventure:

    The Feathered Alchemist: Roleplay with Thistlewick, an abrasive, rooster-morphed NPC who is one “oops” away from leveling a city block.

    A Mouse-Eye View: Explore a vertical dungeon where common household items are massive obstacles and chemical spills are lethal hazards.

    The Tiny Tyrant: Face off against King Ermine, a weasel with a massive ego and a legion of loyal, potion-boosted rats.

    High-Stakes Heist: Recover the Grimoire before the shop—and the city—succumbs to the next failed batch of experimental sludge.

The world is huge, but your courage is bigger. Can you outsmart a genius weasel, or will you end up as the secret ingredient in the next failed potion?

What’s Inside the Hoard?

This digital download contains everything you need to lead your party of brave mice through the alchemical ruins:

    The Full Adventure (61-Page PDF): A complete, high-stakes journey formatted in a clean two-page spread—optimized for easy reading.

    The “Quick-Ref” GM Guide: A condensed, print-friendly version of the adventure featuring pure mechanics and room descriptions. No images, no fluff—just the data you need to run the game smoothly.

    New Player Class: The Potioneer: Bring the chaos of alchemy to your party! A fully playable class.

    High-Resolution Map Pack: * 3 HD Color VTT Maps: Beautifully rendered for digital tabletops.

        2 GM Keyed Maps: Fully labeled for effortless navigation through the shop’s vertical ruins.

Thistlewick Phial’s Potion Shop is available through DriveThruRPG in PDF.

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