Aristotle's Lantern

Abney Frost is afraid of the dark, it has teeth and it bites.
For years, she has survived alone on the streets, hunted by creatures only she can see.
All that changes when she meets a boy who has the power to drive the monsters away, a boy covered in blood and with no memory of his past.
Together, they must try to uncover the mysteries that surround them and search for answers some would kill to keep hidden.