The Twenty-fifth Spirit is Glasya-Labolas. He is a Mighty President and Earl, and showeth himself in the form of a Dog with Wings like a Gryphon. He teacheth all Arts and Sciences in an instant, and is an Author of Bloodshed and Manslaughter. He teacheth all things Past, and to Come. If desired he causeth the love both of Friends and of Foes. He can make a Man to go Invisible. And he hath under his command 36 Legions of Spirits.