You hit the stairwell door at a run and keep going up. Something in your mind tells you your forgetting one important detail. You can hear the creature slam the door off its hinges below you as you make it up 3 flights of stairs. You make it up 5 more flights and slam into the roof door and it slams open with a loud "Wham!" You can hear the things laugh below you and the sound of clawed feet on the stairs. Then you realize the one thing you forgot... There is no fire escape on these newer buildings thanks  to the fact Rescue vehicles can fly due to Arcano Technology. However as you burst out onto the roof you realize that the buildings are close enough that you may be able to jump across to the roof of the business office.