I wrote this up for my own game, and then neer worked it in --
 depending on the gameplay and the DM, it could be very powerful or
 pretty weak.  The idea's not incredibly original, but I think it
 would be very in-character, and it could provide a simple way around
 certain problems for the DM.

  _The Libram of Living Lore_

 The Libram of Living Lore_ is a magical book of historical and
 legendary knowledge, designed for active use by bards, sages, and
 historians.  The book holds an undetermined number of pages, which
 all appear to be blank on a quick perusal.  If the index is
 consulted, however, a number of interesting, unusual entries may be
 found.

 The book is meant to be used actively, and will `encourage' owners to
 pass along the book should the possessor not actively adventure with
 it (by showing only extremely dull entries in the index).  The book
 particularly likes to travel in the vicinty of epic deeds and
 stories, which it may utilize to fill its own pages.  The veracity of
 the book is generally `good', but not `perfect', and seems often to
 reflect the belief of some owner (past or present) rather than
 `knowing' the truth.