Module M6: Back, You Big Bad Kitty!

Advanced Dungeons & Dragons / OSR Scenario by Mice of Legend

The cats have won.

Across the farmlands east of Portal Lake, villages stand abandoned, grain rots in the fields, and entire communities have bent the knee to the so-called cat demons. Their servants scour the countryside for captives, tribute, and converts while strange lights and unnatural sounds spread from the legendary Big Barn.

At the center of it all stands a family of giant predator cats.

Part tyrants. Part cult leaders. Part delusional demigods.

From their shadowed fortress they command armies of rats, cultists, slavers, and predators while an impossible machine hums deep within the barn itself.

To stop them, the party must cross predator-haunted farmlands, rescue prisoners, infiltrate the Big Barn, and bring the machine down before the lands surrounding Portal Lake are torn apart.

At last, the truth behind the theft of the Stellar Keystone begins to emerge.

You Are Prey

A hawk does not care how clever you are.

A cat does not fight fair.

And in the Big Barn, you are deep within a predator’s domain.

Victory is possible, but rarely through brute force. Planning, caution, negotiation, and timing matter far more than heroics. The enemy is larger, stronger, and already in control.

This is a hunt.

And the mice are not the hunters.

Adventure Highlights

• Giant predator cats ruling through fear, illusion, and religious fanaticism.
• A family of memorable feline villains, each with their own ambitions and schemes.
• Rescue missions, infiltration, and wilderness exploration.
• Towering grain fields and sprawling gardens that become a wilderness unto themselves.
• The Big Barn, a reactive enemy stronghold filled with patrols, cultists, prisoners, and shifting alliances.
• Pine marten lieutenants, cultist rats, quasit spies, and terrified survivors.
• An unstable arcane machine capable of opening gates between worlds.
• New monsters, magic items, spells, and campaign lore.
• The conclusion of the second major arc of the Perils of Portal Lake campaign.

The Big Barn

The legendary Big Barn is no ordinary dungeon.

Within its towering rafters, demon cats rule through fear and illusion while their followers carry out raids across the surrounding countryside. Patrols investigate disturbances. Defenders react to intruders. Prisoners await rescue. Allies may be found in unexpected places.

The party may attempt stealth, sabotage, diplomacy, negotiation, deception, or direct assault.

All paths eventually lead to the machine.

And to the cats who built it.

Module M6: Back, You Big Bad Kitty! is an adventure for characters of levels 5–7 designed for AD&D 1e / OSRIC and compatible with most OSR retroclones.

Module M6: Back, You Big Bad Kitty! is available through DriveThruRPG in Print and PDF.

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