As Aron revealed the fate of the Drakar to Rose, who happily agreed, Lorserv eyes tinged with worry. He of course couldn't understand the language they spoke in but a feeling of a grim fate worse than death awaiting him arose.
His worst fear was perhaps getting treated in the same humiliating way as they treated the tulsa they captured.
When the thought of that became a possibility in his mind, Lorserv's desire to surrender vanished. If such a fate was what awaited him, then he was better off risking it all to attempt to escape.
So in the next moment, whilst Aron's attention was still on Rose, he raise his head and burst forth all the power he could muster into wings and fluttered them violently.
Aron was quick to feel something wrong so he quickly distanced himself from Lorserv. In his mind, cornered opponents could sometimes be far more dangerous.