Aaron fixed his wound with the help of the first-aid kit that was available in every cabin. This is a world that is full of dangers. So, as a rule, first-aid kits were available almost everywhere in important areas or in areas where immediate medical help wouldn't be available.
After fixing his wound, he called the emergency response number.
"Hello, this is the train emergency. How may I help you?" a voice came from the other side.
"Hello, my name is Aaron. I am from...." Aaron described what had happened a few minutes before.
"Okay, sir. I would send some train guards your way", the person on the other side responded.
"Thank you", Aaron said as he ended the call.
After the call, he went out of his cabin to check on the attacker. After he lost consciousness, Aaron had left five of his skeletons and five ghosts that he had summoned to guard the attacker while he went away to fix his injury, which was leaking blood.