This heavy book contains instruction on improving memory and logic, but entwined within the words is a powerful magical effect.

If anyone reads this book, which takes a total of 48 hours over a minimum of six days, she gains an inherent +1 bonus to her Intelligence score. Once the book is read, the magic disappears from the pages and it becomes a normal book. Because the tome of clear thought provides an inherent bonus, the reader will earn extra skill points when she attains a new level.

Prerequisites: Craft Wondrous Item, miracle or wish.
Cost to Create: 13,500 gp (plus 500 gp for base item), 1080 XP, 27 days.