In fact, Jiang Baimian could've stopped Xiaochong when he ran to the alley. After all, she temporarily didn't have to worry about the others and was the first to react.
She could've shouted for Xiaochong to stop and say that she would bring him along. With the military exoskeleton and the modified jeep's help, it would definitely be much faster for them to escape together than for a child like him to do it alone.
But at that moment, Jiang Baimian hesitated. She guessed from Xiaochong's reaction that Du Heng had followed the trail and was already nearby.
If the Old Task Force kept bringing Xiaochong along and couldn't avoid the mysterious antiquarian, the Old Task Force would be in a dilemma when the two parties met. They wouldn't know which side to side with.
Either side was someone the Old Task Force couldn't face at the moment. Furthermore, they had a certain level of friendship with both parties and had been given considerable favors.