Everyone assembled near the gates the following day, mainly to see Shinon off as the day of his encounter with Aric had arrived. Even then, no one knew how Shinon was planning to fight against Aric by himself.
Shinon had never bothered telling anyone, even Kira and Rico, about his strategy to take down one of the most notorious people left alive in their rotten world.
However, they were confident in Shinon's abilities, especially after his win against the Necrognasher. If Shinon could defeat something like that, he could certainly take care of a mortal being.
The only thing was, everyone knew Aric wouldn't arrive at the drop off alone, despite having mentioned that he would in the recent letter he sent to the settlement.
Although no one doubted Shinon's ability to shine during tough times, they were worried for Shinon and the girls because of Aric's treacherous nature.