If they want everyone to come in without weapons, it means they want us at a disadvantage. You shouldn't trust them.

[Strictly speaking, Callisto knows this isn't true. She's learned that proper weapons are both uncommon and illegal here, and that it's unlikely that the store's owners have any even for personal protection, let alone any that they're lying in wait to ambush people with. But that way of living in the world still makes no sense at all to her, and so she's stubbornly sticking to what she knows - which is that if you make yourself look weak and unprotected, you do so at your own peril.

But she does settle the spear a bit further down into the bag, fully hiding the sharpened end. And as for the bat...]

Tell them we're on our way to play baseball.