Shock Wave (Stormswept Book 1) - Dana Mentink

Why can't Sage let Antonia go? She's willing to let a dog die and/or fend for himself, but she has to go stupidly after a woman she's not even sure is in the building? She could've left before all this happened. But, no, every single noise must be Antonia. Despite the fact that someone's obviously trying to kill them.