But, on the other hand, they connect diagonally, and the
sprawling outlines run off in great slanting waves of optic
horror, like a lot of wallowing seaweeds in full chase.
which tone does the underlined phrase suggest?

One conclusion that a reader might draw from the excerpt from "there's a man in the habit of hitting me on the head with an umbrella" is that the man with the umbrella is persistent in his mission. provide two details from the text to support this conclusion.