It was finally shallow enough for him to stand, setting his feet down on the bottom and dragging Agatha further, enough so that his upper torso was finally out of the water, the weight of his weapons helping him keep his feet planted securely.

He turned just in time to see the mermaid withdraw to strike and reacted solely on instinct, throwing a crushingly strong right hook to the thing's jaw. He only didn't have a knife in his hand by virtue of having no time to take it from his belt. Still, this was often how he preferred a fight. No weapons beyond whatever his body had given him.