Boy, you learned it in your youth

FROM: "THE HAUNTING OF ALAIZABEL CRAY" by CHRIS WOODING

Wych-kin: The Wych-kin are monsters that attack and kill humans. They live in every major city. They come in a large variety of types, each with its own power and weaknesses although all are vulnerable to sunlight.

Cradlejack: A wych-kin with a narrow, skeletal body and long, spindly fingers. They have amber eyes and needle-like teeth. A bite or scratch fom one may infect the person, who will then become a Cradlejack. They make their lairs in quiet areas, dark and sheltered from daylight and usually high up because they climb well and it is safter up high with many escape routes. They are scavengers and when they cannot eat humans, they consume rats.

Incubus: A wych-kin that hangs onto a person's back. You cannot see it or touch it, but it is there, weighing you down, making your heart sick, your soul heavy, and your body tired. Slowly, you will lose the will to live and, one day, you sink to your knees and never get up again.

Draug: A wych-kin and a member of the Drowned Folk, which makes them exceedingly rare (with only two recoded cases). It has we, webbed-like footsteps and laboured wheezing, like the phlegmy breathing of an old man.

Wight: A wych-kin that exists only in the light and cannot harm a person who is in total darkness. Too much light will destroy them. It is a shifting, amorphous thing that stretches thin, breaks, and reforms like liquid as it moves. Each hand is fully the size of its narrow body, impossibly out of proportion, and has no head to speak of, but rather only a pair of smouldering dots approximating eyes that are buried in what might be called its chest. Great long legs with sharp knees complete the mockery of a shape that it possesses, much like the stick--figure cast by a human at the end of the day when the sun is low and the shadow lengthy.

Night Mare: A wych-kin seen as a naked, twisted old crone with long straggly hair who has hooves for feet and a long tail.

Deildegast: A wych-kin that takes the shape of a narrow, lanky man in rags. It is a tall, mournful, dreadful thing.

Dog-rat: A wych-beast that is a metre long (not counting the tail), has arched hindquarters, bristly black fur and jaws that can snap a man's hand off. They are twisted from within, possessed by wych-spirits that warps them and makes them huge and foul. The muzzle is leathery and dog-like in expression and the claws are hooked and vicious. The eyes glow with demonic light.

Wych-dog: A wych-kin that has a vague shape of a dog, but seems swollen and twisted from the inside. It is barrel-chested with knotted legs of grotesquely thick muscles. The teeth are overgrown in such a way that the creature's gums are overgrown and spintered, making the drool pink with blood. The creature's eyes are blank, dark, and set within prominent ridges of bone that shadows them. The wych-dog's fur is bristly black.

Glau Meska: Wych-kin creatures from the deep that are servants of the dark gods.