Say what?

I bought the Xbox version of "Divinity II - the Dragon Knight Saga" in January this year. It included both Ego Draconis and Flames of Vengeance. The manual states explicitly that I can start Flames of Vengeance "with a new or a previous character".

I kind of assumed that the alternative of starting with a previous character meant that I could play through Ego Draconis, and then just continue playing Flames of Vengeance with the same character, keeping my final level and equipment etc.

Have I assumed wrong?