"Pulitzer prize-winning investigative writer Valentina Garnier loves a good story, so when she learns that CIA director Agnes Pendalon wants her to travel to Kunashir Island in Russia’s easternmost province, she jumps at the chance. Top scientists, political aides, CIA agents and even the vice president’s daughter have all made mysterious trips to the island in recent weeks. Could it be coincidence, or is something more alarming at play? When...