<Ding! They came from outside your world> the system gave him the answer and that made Aroon's mind freeze for a moment.
"Don't tell me…" he paused while a very frightening possibility flashed past his mind.
<Ding! You can't tell which thing was here before the invasion or it brought by> the system spoke what he was unable to accept, <Ding! Only I can tell you the truth>
Aroon slowly swallowed his dried up saliva before the youth led them towards a tunnel. "That one leads to a room filled with cameras and recordings," he said before turning to Arron, "if you wanna know what killed your sisters."
Aroon ditched what he wanted to ask his system about. Catrine knew this bunker here was an alien thing and that made him wonder about how she knew that.
"That way?" he moved without hesitation towards the tunnel while the youth shouted:
"Do you know how to operate recording devices?"