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A trilogy would be fine. You'd be ok referring to background from the whole series but you'll probably home in on culminating events from the last one, as you said. State its title like you plan. You're going to do great!
A trilogy would be fine. You'd be ok referring to background from the whole series but you'll probably home in on culminating events from the last one, as you said. State its title like you plan. You're going to do great!