Gunsel

The boy’s eyes […] ran over Spade’s body from shoulders to knees […] “Another thing,” Spade repeated, glaring at the boy: “Keep that gunsel away from me while you’re making up your mind. I’ll kill him […] ”

There's somebody comin. I think it's that gunsel.

The two gunsels waited for him on each side of the doorway, gun-hands bulging in their coat pockets.