I did not consume my tomes on Ghallanda because they had been nerfed. So my library of +1 and +2 tomes on Ghallanda I was given a chance to consume a second time.
But since they nerfed them I did not bother.
Now, I had a chance to do it again at low level, but I am nerfed again.
Hmmm, maybe a new character is in order for me.
Oh well. I will be nerfed again, so I am already over it.