Aaelgus felt the pain as well but he kept himself from screaming and he noted the Kokiri still had some difficulty believing him and when Aaelgus said "Kakoriko" the confused look on Boom's face Aaelgus figured it must be just ruins by now he was glad he grabbed his stuff from that place when he had.

Aaelgus put his hand to his head because of the pain, he looked over at the Kokiri screaming and the fact that their relationship was going to be hard so when push came to shove Aaelgus would only probably be able to prove himself only in combat against their pursuers he thought that the only viable way to prove he was not against them so he now tried to figure out what the source of the mind attack was coming from.

(Dice Check?; if so Adventurer Cliché)