The Graham Westlake Foundation sponsors the International Symposium on Unexplained Phenomena. This year, the fortieth annual symposium takes place in the Pacific island nation of Tonga. The investigators are among the attendees. There, they encounter evidence of phenomena they know only too well. They begin an investigation that leads them to cults, confusion, mayhem, delicate inquiries, villains foreign and domestic, new magics, horrors undersea, horrors in swamps, and horrors in the sands of the desert. A wide variety of characters and situations enhance a memorable set of adventures.