Most spies take a break for the holidays, but not me, Charlotte Locke. As an analyst for Section 47, a secret spy organization, I normally use my magical form of synaesthesia to uncover lies and track paramortal bad guys from the comfort of my cubicle. But tonight I'm going out into the field, along with my partner, Desmond Percy, a powerful galvanist. Instead of enjoying Christmastime in the city, I'm in a German castle, dressed like a toy soldier and masquerading as a waitress at a swanky Christmas Eve party. My mission? To gather information that will help Section 47 track down a dangerous enemy. Despite the glitz and glamour, I can't shake the sense that something is wrong - and that Desmond and I might not leave the party alive.