Complex sentence: The Candlemaker is an egregore, removed from the physical plane of existence eons ago who one day discovers an opportunity to escape into the physical realm in the form of Dorothy Spinner, an ape-faced girl with the ability to bring imaginary creatures to life.
Split into simpler sentences: The Candlemaker is an egregore, long since removed from the physical plane of existence eons ago. And that chance was named Dorothy Spinner, an ape-faced girl with the ability to bring imaginary creatures to life.