It seemed that he had only blinked, losing sight of the biker for a fraction of a second - but Sev had completely dissapeared, not even the sound of his heavy footsteps to be heard. Startled, Vos first peeked over the car's front, and turned around, thinking that Sev could possibly teleport, using this ability to strike from behind. But instead, he saw some other guy - fourth to come here, an uninvited guest - aiming a six-shooter to his body. That moment, his pupil's dilated and face became an even paler white white than before, fear painfuly yanking at his heart: this were a threat far greater than any he had faced before, and unable to deal with it, all he could was only run away.

Vos leapt towards the nearest window, the first shot catching him in the shin; the muscle's inherent toughness lessened the damage, his leg remaining functional, but the wound were left bleeding. There were little distance between him and the building, leaving no time for another round to be fired, and so, crashing through glass, he quickly pulled himself upright, the leg feeling but a little bit sore for now. The mage checked on his mana flow, making sure the daggers were steadily charging with energy, while quickly taking note of his surroundings. He had to think of something before the gunner would catch up on him, and to win some time, he barged through the door and into the building's corridors, seeking cover somewhere down the hallway. 

Adrenaline spared Vos of the pain, but once its effects faded, he'd have even less of a chance against Azarak.