So, first of all, let's consider size. The Complete Arcane has a special ability called Glamered which allows the spellbook to be disguised as something else. The Epic Blessed Book should likely incorporate that, only it should be a transmutation effect where the book actually becomes something else. In other words, it is animated. This can be a Polymorph Any Object effect.Blessed Book
This well-made tome is always of small size, typically no more than 12 inches tall, 8 inches wide, and 1 inch thick. All such books are durable, waterproof, bound with iron overlaid with silver, and locked.
A wizard can fill the 1,000 pages of a blessed book with spells without paying the 100 gp per page material cost. This book is never found as randomly generated treasure with spells already inscribed in it.
Moderate transmutation; CL 7th; Craft Wondrous Item, secret page; Price 12,500 gp; Weight 1 lb.
Next, durability. It should be made of something far more durable than normal paper. Perhaps adamantine foil. This will make it very heavy, so it should also be weightless. This can be a Levitate effect.
It should be waterproofed and immune to energy attacks. Waterproofing is an Endure Elements effect while immunity to energy is a Protection From Energy effect.
It should be immune to magic, so Antimagic Field.
After that, the Blessed Book removes the cost of scribing a spell into it (ordinarily it is 100gp/page, but with the Blessed Book, it is free). The Epic version should keep that ability, but should likely reduce the time required to scribe scrolls into the book to nothing, as well. Consuming spells is a bit more tricky. The only effect I can think would be a Wish effect.
So, here is my idea for the Epic Blessed Book:
What does everyone think? Please offer suggestions. The pricing was rather arbitrary, as I have no clue how to price it. If you feel it should be more or less, please give a reason why.Epic Blessed Book
This book creates a bond with its owner. None of its abilities can be used until it is in its owner's possession for at least one week. The owner can prepare any spell in the book without actually reading from it. The normal requirements for rest are still required, but looking at the book is not required for spell preparation, so long as the book remains on the owner's person and on the same plane.
The book may take the form of any inanimate object the owner likes from the size of a small coin to a large table.
Adding spells to the book from a scroll requires the scroll to be placed into the book. The scroll is then consumed and the spell added. If another wizard's spell book has spells to be copied, simply place the book inside the Epic Blessed Book, and all of the spells are copied instantly, leaving the spell book unharmed. A DC 15+Spell Level spellcraft check is required as normal by the owner for each spell added. The normal 24 hour time period and the 100gp per page costs are not needed.
Unlike most spell books, the Epic Blessed Book does not have a certain number of pages. It has as many pages as it needs to store the spells it contains.
The book has hardness 20 and 2,000 hit points. It is immune to energy damage and magic that offers spell resistance. It possesses semi-empathy and can contact its owner telepathically if it is in danger.
Caster Level: 30; Prerequisites: Craft Wondrous Item, Craft Epic Wondrous Item, Polymorph Any Object, Levitate, Endure Elements, Protection From Energy, Antimagic Field, Wish; Market Value: 3,050,000gp.