From PDF Version 3.0:
A mythic artifact known as the Crystal Consciousness cycles toward awareness . . . and with its waking, the entire psionic paradigm hangs in the balance. Many seek to control the Crystal: a psionic lich, a band of fanatic arcanists, and a guild powerful in the arts of the mind. Some would use the Crystal to dictate the future of psionics while others would use it to crush the mental arts forever!
In addition to this world-shaking adventure for 10th-level characters, If Thoughts Could Kill details all-new rules from Bruce Cordell, designer of the Psionics Handbook. Inside this award-winning book you’ll find:
New psionic monsters including the psionic lich and a new PC race.
Lots of new items,powers, and even an all-new psionic prestige class.
The new discipline of Psychonecromancy and other variant rules.
More than 300 new powers converted from spells in the Player’s Handbook and The Book of Eldritch Might.