Why were Arsat and his brother separated while running from their pursuers?

Arsat and his brother were separated while fleeing from their pursuers due to the chaos and urgency of their escape. In the heat of the moment, fear and desperation caused them to lose sight of each other, leading to a tragic division. This separation ultimately highlights the themes of betrayal and familial bonds in their story, as Arsat grApples with the consequences of leaving his brother behind.