Inner Demons: An Urban Fantasy Novel by A. C. Nicholls

It's Keira Poe's last adventure as Chicago's guardian, and her mission is to find a suitable replacement. Enter Jack Hannigan, an unpredictable yet reliable combatant, who is keen to fight away the city's demons.

But Jack has a secret that nobody else knows. In order to recruit him, Keira must first accompany him on a mission of his own, tracking down one of Hell's most powerful demons so they can attempt to slay him.

While Jack is suspiciously keen to kill his target, Keira is not so ambitious. All she really wants is to employ her successor and steer him down the right path, so he can become the Vault's next Cardkeeper. If only it were that easy.

"The fourth novel in The Cardkeeper Chronicles, INNER DEMONS says goodbye to our much-loved Cardkeeper, and introduces a brand new monster-hunting badass."