User blog comment:Fedorastorm/Need a hand here!/@comment-25487720-20150514074653/@comment-26104528-20150514152855

I've never actually read that novella, but from I can gather from the plot summary, Myra's swtiches are not within her control unlike Jekyll's for the most part. Her normal persona only takes full control when she's not in combat. During a fight, her normal persona is only able to partially regain control,(maybe say a few words) but only after severe trauma.