After the adventure, there are lots of possibilities. Did they find the prince and bring him to Condurat? Perhaps they need to now find proof that he is a prince of the blood. Even if they have that proof, they’ll need to convince the warring factions in Rome to unite in support of him. Or perhaps they’ll want to continue on to the Elven hills and request outside assistance. This will be a journey through hostile lands to a place that few Romans have visited in centuries.
And those choices all basically assume that Condurat’s vision is of a future that the characters want to support. Change the basic assumptions, and those possibilities change as well.