From this distance, it was hard to see where Hannah was, but Jameson could hear her and that was enough for him. She could be trapped somewhere and couldn't get out, and in which case then the cavalry was already on its way. Once he'd determined where Hannah was - and if she was injured - then he'd call Jasper and let him know what was going on. No sense in worrying his twin before he had all the details about the situation.
For now, though, he did have Anubis, and the huge dog seemed to recognize him. Which was awesome, because he didn't doubt Anubis would tear his face off if he didn't know Jameson already. "Anubis, buddy, where's Hannah? Can you take me to her?" With a bark, Anubis took off and Jameson followed, albeit a bit slowly due to his cane and his right leg more or less dragging behind him. When this was all over, he was calling his physical therapist and his doctor so he could the rods out of his leg and get back to normal, because this was ridiculous.
Anubis led him over to a pile of rubble, where there were several dead bodies. No one was moving, and Jameson kneeled down to double check for pulses. No dice. Grimacing, he was about to stand up again when he saw a woman crawling towards him. "Hannah!" He knew better than to rush her because she'd never see him coming, but that didn't stop him from going as fast he could. "Hannah, stay there, I got ya! It's Jameson!" You know, just in case she couldn't tell his voice apart from his brother's.