The Journey Begins

What happens when a band of adventurers is transformed into mice and cast into a world where every predator is a deadly threat and every journey becomes an expedition?

A Miraculous Mousey Metamorphosis! is the first adventure in the Perils of Portal Lake campaign for Shadowdark RPG. Designed for 1st-level characters, it introduces players to the mouse-sized world of Portal Lake and begins a campaign of exploration, survival, and discovery.

The adventure begins in the human realm, where the party is drawn into a mystery that leads them beyond their own world. Transformed into mice, they soon find themselves in the frontier settlement of Braeford, a small community struggling to survive relentless attacks from rat raiders.

To aid the village, the party must explore dangerous wilderness, investigate hidden threats, and confront enemies far larger and more powerful than themselves. Along the way they will discover that Portal Lake holds far greater secrets than anyone could have imagined.

Adventure Features

A complete introductory adventure for 1st-level characters.

Transform an existing party into mouse-sized heroes.

Explore the frontier settlement of Braeford and the surrounding wilderness.

Battle rat raiders and uncover the dangers threatening the region.

New druid class, spells, monsters, and magic items.

Beautifully illustrated maps, locations, and encounters.

Serves as the opening chapter of the Perils of Portal Lake campaign.

Begin Your Journey

A Miraculous Mousey Metamorphosis! introduces the setting, factions, and dangers of Portal Lake while providing a complete adventure that can stand on its own or launch an extended campaign.

The Mice of Legend Campaign Guide is recommended for additional setting information, player options, and campaign resources.


Released: 31 July 2026