Books have been recently been causing pets' intelligence to drop to 0 when read. This problem has been corrected, and anyone who has been affected by this should visit this page and click the link to have their pets' intelligence reset to the proper level.
<BR><BR>The Oracle assures us that all books are now safe for pets to read once again.
! Cause he's read all the cheapy ones, I was acutally more mad cause 250 was a milestone for me; and that made me do it again XD
Mainly it would be the Tomes, which aren't really technically books per se, as they give several assorted stats points at once, including various amounts of intelligence points. Those would be the majorly significant intelligence points lost.