Lirian had thought of an answer as well and as it so happened his answer was 'down' as well, but he didn't say it because he didn't want to influence their thoughts.
Since all their answers were the same, it was decided.
"It's decided we'll be heading to Riverfall," Lirian said to Bell.
It didn't matter much to Lirian, from what he heard from the mayor of Willcolly every power from the minor nobles and up would be required to send their forces towards the Desolation, which meant that either way he would find a route to follow.
At worst he would have had to make a trip up to Proge only to find that their rout to the desolation would take them through Riverfall anyway.
It would just cost a little extra time, and Lirian wouldn't call it wasted, after all nothing is a waste if there is something you learn from it.