CAUTIOUS investigators will hesitate to challenge the common belief that Robert Blake was killed by lightning, or by some profound nervous shock derived from an electrical discharge. It is true that the window he faced was unbroken, but nature has shown herself capable of many freakish performances. The expression on his face may easily have arisen from some obscure muscular source unrelated to anything he saw, while the entries in his diary are clearly the result of a fantastic imagination aroused by certain local superstitions and by certain old matters he had uncovered. As for the anomalous conditions at the deserted church of Federal Hill—the shrewd analyst is not slow in attributing them to some charlatanry, conscious or unconscious, with at least some of which Blake was secretly connected.