Enc.: 20 (book, large metal-bound)	IS:		XP: 9k	GP: 50k
Miscellaneous Magic	-	Magic Items	-	DMG

This magical writing bestows spell use ability upon
its possessor, but upon first reading the work any character not already
able to use spells will suffer 5-20 hit points of damage and be stunned for
5-20 turns.

Thereafter, he or she can examine the writing without further
harm. The book of infinite spells contains from 23-30 (22 + d8) pages. The
nature of each page must be determined by random die roll. Use the following
toble:
 

01-30	blank page
31-50	cleric spell
51-60	druid spell
61-95	magic-user spell
96-00	illusionist spell

If a spell is written on a page, roll d10 for all except magic-user spell, for
which a d12 is rolled, to determine spell level. Results of 6-10 (or 10-12)
indicate a d6 (d8 for magic-user spells) is to be rolled instead. When level
is known, determine the particular spell by random means also. Record
page contents secretly, and DO NOT REVEAL THIS INFORMATION TO THE
HOLDER OF THE BOOK.

Once a page is turned i t can never be flipped back, i.e. paging through the
book is one-way trip, When the last page is turned, the book vanishes,
The owner of the book of infinite spells can cast the spell to which the book
is opened, but once per day only, unless the spell is one which the charac-
ter would normally be able to cast by reason of class and level, in which
case the spell can be cast up to 4 times per day due to the book’s magical
powers. The book need not be in the actual presence of the owner in order
to empower spell ability, so he or she can store i t in a place of safety while
adventuring and still cast spells by means of its power. Each time a spell is
cast there is a chance the energy connected with its use will cause the
page to magically turn (despite all precautions). The owner will know this
and possibly even benefit from the turning by gaining access to a new
spell. The chance of a page turning is as follows:
 
 

Spell-caster employing spells usable by his or her class and/orlevel	10%
Spell-caster using spell foreign’to his or her class and/or level	20%
Non-spell caster using cleric spell	25%
Non-spell caster using magic-user spell	30%

Treat the spell use just as if a scroll were being employed, including time
of casting, spell failure, etc.

Korr's Book of Infinite Spells (92.155)

 
 

TheDungeonDelver wrote:
Two questions Gary:

1: I'm using a Book of Infinite Spells in a module I'm hard at work on (as we speak, the laptop is running and I'm keying in the encounter!). The item's description states that the "owner" of the book need not have it in his or her possession to use the spell(s), but assuming someone else (in this case, possibly the party - although getting past the glyph of warding (lightning) and the Xeg-yi are going to be challenging enough!) gets possession of the book that negates use by the original owner, yes? I feel it's a yes, but set me straight.

Short answer: Yes, a change of possession negates the ability to use the book by the former possessor.