Lucas knew it. As he went to the cave and pavilion before others and inspected the area ahead of them, he already knew that death would come. Hence, Lucas didn't waste any more thoughts and just agreed with them as he went to the face of the death door.
"The expedition team used their warning talisman to send a message to the capital. It was already an emergency for them; that is why they needed help." An officer said in front of an audience in a hall, then shifted his attention to Lucas, who was currently being interrogated, sitting at the center of the hall with his hands tied behind his back.
Apparently, the expedition didn't end as others expected. It was a total disaster, with only one person surviving. Hence, making the only survivor suspicious. And right now, Lucas was in front of plenty of people, acting as the jury to judge Lucas's actions and what he did to survive.
"Then, if you already needed help, what does that mean? How did you survive?"