From publisher blurb: Dr. Mae Wylde and her team ended an occult breach on the tiny island of Aunu’u in American Samoa three weeks ago. Dr. Wylde and her team returned safely from the Pacific Islands with the mysterious summoning stones believed to cause the breach. . .but the team has gone dark. They last checked in from Dr. Wylde’s home in Upper Peninsula Michigan. As auxiliaries for Intervention Incorporated, your job is simple: Find the team. Assess the threat. End it. The Summoning Stones is a briefing book for a Power Level 4 operation using Modernity (Fate Edition) and the core Modernity text is required to fully utilize The Summoning Stones. It is fully compatible with other Fate Core products. All minor variations are documented in the core Modernity book.