Before the room where Zack and Keenan were previously burned, Keenan had been provided with a flashlight by Zack. In addition to being equipped with a gûn, of course. This made it easier for Keenan to move ahead than waiting for Haylie's group which was three floors above him.
"We're going to lock all the emergency doors after this so they won't bother looking for us by breaking this door," said Zack as he pulled some keys out of his pocket and put them on the emergency door in front of him. Meanwhile, Keenan gave light to Zack by pointing the flashlight at the door handle.
"They can enter from the normal way, can't they?" By now Keenan was used to "they" word to replace the title for people who were chasing him.
"We had collected the ruins of this building bit by bit to block access to
