Jesper thinks they'd probably be better off shooting him, to be honest, but it probably is rude to shoot other Summoned, even if they're being shady. They are for better or worse their own little gang, and not every member of the gang can be trusted. But he's ready to pull the trigger regardless.

"You could always ask Himeka to look into it more. She's still there, and Wanda is there too. They might be able to investigate. You think there's any connection between the old gods and what's going on?" He knows it might just be of interest to her because she's Inej and she cares about that sort of thing. But it seems like anything might be possibly helpful here. Why would the gods be any stranger than the giant magical rock?