of three forms: an innocuous hardcover book; a thick, gilded, magnificent ancient tome with runes and locks; or a monstrous amorphous beast. It temporarily achieves corporeality by possessing humans, but the human host rejects it and the body self-destructs quickly. The Sinsar Dubh usually toys with its hosts, uses them to vent its sadistic rage, then kills them and jumps to a new body (or jumps to a new body and uses it to kill them). The closest it has ever come to obtaining a body was by imprinting a full copy of itself in Mac as an unformed fetus while it possessed her mother. Since the Sinsar Dubh’s presence has been inside Mac from the earliest stages of her life, her body chemistry doesn’t sense it as an intruder and reject it. She can survive its possession without it destroying her. Still, the original Sinsar Dubh craves a body of its own and for Mac to embrace her copy so that it will finally be flesh and blood and have a mate.
THE BOX: Little is known of this Unseelie hallow. Legend says the Unseelie king created it for his concubine.
THE HAVEN: High Council and advisors to the Grand Mistress of the abbey, made up of the seven most talented, powerful sidhe-seers. Twenty years ago it was led by Mac’s mother, Isla O’Connor, but the Haven got wind of Rowena tampering with black arts and suspected she’d been seduced by the Sinsar Dubh, which was locked away beneath the abbey in a heavily warded cavern. They discovered she’d been entering the forbidden chamber, talking with it. They formed a second, secret Haven to monitor Rowena’s activities, which included Rowena’s own daughter and Isla’s best friend, Kayleigh. The Haven was right, Rowena had been corrupted and ultimately freed the Sinsar Dubh. It is unknown who carried it from the abbey the night the Book escaped or where it was for the next two decades.
IFP: Interdimensional Fairy Pothole, created when the walls between man and Faery fell and chunks of reality fragmented. They exist also within the network of Silvers, the result of Cruce’s curse. Translucent, funnel-shaped, with narrow bases and wide tops, they are difficult to see and drift unless tethered. There is no way to determine what type of environment exists inside one until you’ve stepped through, extreme climate excepted.
IRON: Fe on the periodic table, painful to Fae. Iron bars can contain nonsifting Fae. Properly spelled iron can constrain a sifting Fae to a degree. Iron cannot kill a Fae.
MACHALO: Invented by MacKayla Lane, a bike helmet with LED lights affixed to it. Designed to protect the wearer from the vampiric Shades by casting a halo of light all around the body.
NULL: A sidhe-seer with the power to freeze a Fae with the touch of his or her hands (MacKayla Lane has this talent). While frozen, a nulled Fae is completely powerless, but the higher and more powerful the caste of Fae, the shorter the length of time it stays immobilized. It can still see, hear, and think while frozen, making it very dangerous to be in its vicinity when unfrozen.
POSTE HASTE, INC.: A bicycling courier service headquartered in Dublin that is actually the Order of Sidhe-Seers. Founded by Rowena, she established an international branch of PHI in countries all over the world to stay apprised of all developments globally.
PRI-YA: A human who is sexually addicted to and enslaved by the Fae. The royal castes of Fae are so sexual and erotic that sex with them is addictive and destructive to the human mind. It creates a painful, debilitating, insatiable need in a human. The royal castes can, if they choose, diminish their impact during sex and make it merely stupendous. But if they don’t, it overloads human senses and turns the human into a sex addict, incapable of thought or speech, capable only of serving the sexual pleasures of whomever is their master. Since the walls fell, many humans have been turned Pri-ya, and society is trying to deal with these wrecked humans in a way that doesn’t involve incarcerating them in padded cells, in mindless misery.
SHAMROCK: This slightly misshapen three-leaf clover is the ancient symbol of the sidhe-seers, who are charged with the mission to See, Serve, and Protect mankind from the Fae. In Bloodfever, Rowena shares the history of the emblem with Mac: “Before it was the clover of Saint Patrick’s trinity, it was ours. It’s the emblem of our order. It’s the symbol our ancient sisters