Voidonomicon

The Voidonomicon is one of the most powerful artifacts ever created, if not the most powerful. It contains the rituals necessary to summon the powers of the Steelfang family into oneself, imbuing one with great power.

Fanari Nikulson possesses the tome, after retrieving it from where the College of Winterhold once stood. The book was created by Siris Steelfang as a parting gift to the world his family abandoned.

Appearance
The Voidonomicon looks like a black tome, with golden filigree forming swirly, hypnotic patterns on the cover. The cover seems to be made of enchanted ebony and moonstone. The book has no title on it. Inside, every page is black, made of the same ebony that the cover is made of, except much thinner and flexible.

The words in the book are all written in golden filigree, with the daedric alphabet.

Properties
The Voidonomicon is completely indestructible. Any weapon that strikes it will break instantly, except for the weapons of the Steelfang family, which are not possessed by any mortal in existence. The book releases a psionic blast that vaporizes anyone who strikes it or tries to destroy it.

Within the book, there exists the rituals to gain great powers. The main ritual is to call the powers of the void trinity, comprising the Omniarch of Forces, the Omniarch of Minds and the Omniarch of Life and Death. By completing the incantation, one can gain temporary nigh omnipotence.

There are lesser rituals, which allow one to summon Tranquil Guardians, Daedric Succubi or the unrealistically powerful sword Godkiller. Specific invocations to the various void entities are also possible, such as asking the Lord of the Void to remove a section of the Aurbis, or the Lady of Material Existence to create a new section.

Furthermore, one can use the book to teleport to Euphoria, a realm that no longer exists within the bounds of the Aurbis, for temporary protection. The entities of the void will not speak with anyone who enters their land and the teleportation is fleeting. This can be used to time travel, as Euphoria ignores normal time.

The book can project a nearly impenetrable field around it's carrier, if they are threatened. The book also gives access to the Neural Network's knowledge sometimes.

Trivia

 * As you might have noticed, the Voidonomicon is a near complete ripoff of the Necronomicon, except the entities it deals with are beautiful angelic beings, not tentacled horrors.