[With the fire spreading, Nanami had begged off running messages to help put out fires. She'd found Hari, who assured her that the house was Just Fine (for the moment), and pointed her at the nearest fire brigade.]

Hey, anyone got a water spell?

[she was only just starting illusions, but she could still duplicate spells she's seen. And maybe her class skills would help her find out some pattern to the fires that would let her find the arsonist.]