A year ago Millie lost her legs and her filmmaking career in a failed suicide attempt. Just when she's sure the credits have rolled on her life story, she gets a second chance with the Arcadia Project: a secret organization that polices the traffic to and from a parallel reality filled with creatures straight out of myth and fairy tales. For her first assignment, Millie is tasked with tracking down a missing movie star, who also happens to be a nobleman of the Seelie Court. To find him, she'll have to smooth talk Hollywood power players and uncover the surreal and sometimes terrifying truth behind the glamour of Tinseltown. But stronger forces than just her inner demons are sabotaging her progress, and if she fails to unravel the conspiracy behind the noble's disappearance, not only will she be out on the streets, but the shattering of a centuries-old peace could spark an all-out war between worlds. No pressure.

Four months ago, Millie left the Arcadia Project after losing her partner Teo to the lethal magic of an Unseelie fey countess. Now, on what's meant to be a last visit to the scene of the crime, Millie and her former boss, Caryl, encounter what seems to be Teo’s tormented ghost. One problem: according to Caryl, ghosts don’t exist. Millie has a new life, a stressful new job, and no time to get pulled back into the Project's chaos, but she agrees to tell agents from the Project's National Headquarters her side of the ghost story. During her visit, an agent is gruesomely murdered in a way only Caryl could have accomplished. Millie knows Caryl is innocent, but the only chance she has to save her from the Project’s severe, off-the-books justice is to uncover the mystery behind incorporeal fey known as wraiths. Why has the centuries-old Project never heard of them? And how do you fight an enemy that is only seen when it wants to be seen? Millie must answer these questions not just to save Caryl, but to foil an insidious, arcane terrorist plot that would leave two worlds in ruins.

In the third book of the Nebula Award–nominated Arcadia Project series, which New York Times bestselling author Seanan McGuire called “exciting, inventive, and brilliantly plotted,” Millie Roper has to pull off two impossible heists—with the fate of the worlds in the balance. Three months ago, a rift between agents in London and Los Angeles tore the Arcadia Project apart. With both fey Courts split down the middle—half supporting London, half LA—London is putting the pieces in place to quash the resistance. But due to an alarming backslide in her mental health, new LA agent Mille Roper is in no condition to fight. When London’s opening shot is to frame Millie’s partner, Tjuan, for attempted homicide, Millie has no choice but to hide him and try to clear his name. Her investigation will take her across the pond to the heart of Arcadia at the mysterious and impenetrable White Rose palace. The key to Tjuan’s freedom—and to the success of the revolution—is locked in a vault under the fey Queen’s watchful eye. It’s up to Millie to plan and lead a heist that will shape the future of two worlds—all while pretending that she knows exactly what she’s doing…