nope your stuck with em im not complaining cant risk someone stealing my forbidden knowledge i mean i cant risk someone getting hurt yeah. lol imagine the racket dropping all of them would cause.
Well, my character only picked up the two that was required for the main quest - and even then, I didn't take any of the bonus powers provided. I could have got that number down to one, but I wanted to talk to the good lady again - the shaman's daughter - and she forced me to take the book back. It's not the worst thing in the world, I know, but I really hate quest items like this. Once the quests are finished, you should be free to drop them.