Chapter 15:

 "He was the only one who would talk to me when Scott stopped talking to me," Stiles explained. "At least at first." He smiled at Erica, and she bumped her shoulder against his. They kept talking for a while about classes at first. Then about comic books, because Erica and Stiles could talk forever about Batman, and they spent the rest of lunch debating the best Batman actor. On their way out of the lunchroom, Allison Argent cornered Stiles. Or, she tried to. She stood right in front of Stiles, but Isaac wasn't having it and pulled Stiles around her. Allison walked after them and she smelled angry. She didn't smell like gunpowder, but the wolfsbane clung to her clothes and burned his nose.

 "Stiles, you can't run away from this," she said. Isaac glared at her, but Stiles ignored her, using Isaac's grip on his arm to keep them both moving towards their class. "I know you were the one behind the body." That had Stiles stopping. "And I know it's not your first." She had thankfully kept her voice quiet, but the way she was glaring at Stiles and reaching for her bag didn't exactly inspire confidence.

 "You don't know anything about that," Stiles growled quietly. "And I had nothing to do with the body they found last night, so you and Scott can leave me alone."

 Allison looked defiantly at Isaac. "Do you really want to be friends with a killer?" she hissed.

 "Better than a bully," Isaac said without missing a beat. Isaac shifted his grip so that he was gripping the same place on Stiles that Stiles had used to scent mark him earlier. Isaac tugged on Stiles and they started moving again, leaving an indignant and confused Allison in their wake.