In this volume of Cozy Companion, explore the crystal caverns beneath Terra. You’ll find quickstart rules and a full adventure for Snowbright’s new RPG, Mercurio. You are 2″ tall mice exploring the origins of a mysterious signal on a nearby planet. What will you discover in the deeps?

Crystal Caverns includes:

• New quickstart rules for Mercurio that get you up and playing as space mice quickly… ad astra, mouselings!
• TheA Signal in the Deep adventure, the first part in a new adventure trilogy for Mercurio
• ATime Tails Setting Guide for the Middle Ages, including an exploration of the cave city of Vardzia!
• New fiction forink following the adventures of Cassidy and Hector
• Interviews with game designer Emily Vincent (Pirate of the High Teas) and “mycohistorian” Professor Meeps from the Verdant Isles
• More lore and a new mushroom recipe forTeatime Adventures
• A guide to make your own crystals
• Board game reviews by Ryla the Cat, and much more!