Antony pictured to himself Cayley in the passage, standing over the dead body of his cousin, and working it out. How could Robert be made to seem the murderer, if Robert were alive to deny it? But suppose Robert were dead, too?

He looks at his watch again. (Only twenty-five minutes now.) Suppose Robert were dead, too? Robert dead in the office, and Mark dead in the passage⁠—how does that help? Madness! But if the bodies were brought together somehow and Robert’s death looked like suicide?⁠ ⁠… Was it possible?

Madness again. Too difficult. (Only twenty minutes now.) Too difficult to arrange in twenty minutes. Can’t arrange a suicide. Too difficult.⁠ ⁠… Only nineteen minutes.⁠ ⁠…