DARK VENGEANCE by Diana G. Gallagher

And should the Trinity of Evil be awakened
The Champions of Virtue must defend
The Light of ages past or be forsaken
As the warriors of darkness were before them.

Synopsis: The Charmed Ones are feeling out of sorts. Phoebe misses Cole, who's gone away for a week of solitary reflection. Piper is overwhelmed with the responsibilities of overseeing her household, Charmed affairs, and P3, her nightclub. Paige is still adjusting to her role as a savior of innocents, and is increasingly sensitive to all levels of human pain.

Soon, though, Piper is distracted by an energetic musician auditioning to play at the club, Phoebe is making a new friend in her Web design class, and Paige is meeting new people at the homeless shelter where she volunteers. But it isn't long before the girls discover that a sinister force is working against them; Phoebe's short-term memory is shot, Piper can't control her emotions, and Paige feels thoroughly exhausted. At the same time, their powers are diminished. Could their new acquaintances be connected to the threat? It's a real-life family feud -- one that could have deadly results...

My Review:
Also one of my favorites. The plot is somewhat the same as in "The Crimson Spell". Three ancient warriors were banished to the present where they had to settle an unfinished battle. In doing so, these warriors go to mess up the Charmed Ones powers so that they will lose. Now, Piper could only freeze things for like, a second - plus her emotions ran wild. Paige's telekinetic orbing powers had a delay reaction, but in return has become more destructive. She also keeps falling asleep :Þ Phoebe's grounded as levitation power has been affected, and she can't seem to remember anything. Also, according to the book, Paige did not become "increasingly sensitive to all levels of human pain"! She was just concerned about this homeless old man.
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