The lands of eternal ice and snow have always held a special place in our minds. We know these frosted realms for their amazingly resilient wildlife, including adorable seals, titanic walruses and playful penguins. When we consider this realm, our imaginations take us to a spectacular setting filled with exotic danger and heroic survival. Indigo Ice is the first gaming sourcebook that attempts to capture the entirety of this realm, both above and below the ice. This book expands on the material presented in the Cerulean Seas Campaign Setting, bringing you to a new realm of aquatic adventure!