Since I left Lockwood’s agency voluntarily, a lot has changed in my life. For starters, I started working as a freelancer. Secondly, they nearly killed me—and my ghostly friend, the skull in a bank, was stolen. So I had to ask for help from old friends. The investigation led us to the black market, where they traded stolen Sources containing dangerous and rare ghosts. And my skull was just what they liked. But, as always happens, a small discovery pulls along a big one, unraveling a whole bundle of crimes. It seems like now we’re finally close to solving the Problem—an infestation of ghosts in England. But the truth can be too dangerous—especially if two fearless agents, like me and Lockwood, dare to look beyond the line—into the world of ghosts…