Probelm with the chemical rage skill

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I have a item that if you buy the item,it will give you a spell under a spellbook but,after i use the chemical rage skill,the spells under the spellbook is gone and after the chemical rage skill ends,the spells under spellbook is also gone.Is there a way that allows the spells to be still under the spellbook when the unit morphs?
Thanks in advance