Gunner tensed when the Guardian told him that there was indeed a possibility of it being Strigoi who got Anna. This was his fault, all over again. He could have gone with her. Sebastian didn't need three Guardians on him. Serena and Guardian Belikov would be more than capable of protecting him if anything happened. He should have gone with Anna. He should have protected her. That was her job not just as a Guardian but as her boyfriend. He didn't looked at Serena or Sebastian when they walked up. He didn't dare meet Sebastian's eye. He didn't want to see how the boy was looking at him. First, he lost him his girlfriend, now his best friend. 

Serena looked at the Guardian as he informed him of the danger and nodded. Anna was her friend. She needed to help her friend. She also liked the idea that she was with Sebastian. She wanted to keep him calm, this was a lot for a day that was supposed to be him getting away from the craziness of school. 

They followed him down into the tunnels and stopped when Sebastian noticed the blood. Serena glanced at Gunner as his face darkened, he looked like he was ready to kill someone.

Gunner was ready to kill someone. He was entirely prepared to decapitate the bloody Strigoi who touched Anna with his bare hands. He made sure to keep an eye out still as his rage, far worse than what he had felt toward Jace, grew within him. Then... the scream and Gunner felt his heart being torn from his chest as his hands balled up into fists. 

Serena quickly grabbed Sebastian's hand to stop him from doing anything brash and looked up at him. She met his eye for a moment before she spoke to Guardian Belikov, "Dobbiamo aiutarla!"

She didn't bother translating, her brain was not capable of doing just that at the moment. However, the desperate tone in her voice spoke leagues of its own. Gunner looked at the Guardian, "I'll go.... They either attack me and you guys swoop down on them. Or they don't and I get to Anna," He looked at his mentor, "I have to.... I can't wait for some back up that isn't going to be here till Anna is dead.... or worse...."