Sometimes, there are times that your character should be able to do something but cant because of some strange mechanic. This can be with the base game, a skill not being known or some random item being needed. That being said, you can submit a support ticket if something like this happens and it really is just some odd, obsure mechanic. Now, we may not directly give you this item or book for this skill but if not, we may give you the ability to get it. Naturally, this is not guaranteed. This is up to the admins to decide on if you will get the items requested or not.