L. Jagi Lamplighter

Miranda, daughter of the magician Prospero from Shakespeare's Tempest, lives in the modern age. Upon discovering that her father has gone missing, she must discover the location of her other siblings and convince them to save their father, before the Three Shadowed Ones destroy the Family Prospero. She is accompanied by her company gumshoe, an airy spirit stuck in a body that looks a bit like Humphrey Bogart. Humor, mystery, wonder.