"It wasn't a bunch of kids," Stevenson told him. "It was four professional criminals, I thought you knew that. They were using it in a bank holdup." "Then why did they do _that_?" Stevenson followed Hastings' pointing finger, and saw again the crudely-lettered words, "The Scorpion" burned black into the paint of the trunk lid. "I really don't know," he said. "It wasn't there before the car was stolen?" "Of course not!" Stevenson frowned. "Now, why in the world did they do that?" "I suggest," said Hastings with heavy sarcasm, "you ask them that." Stevenson shook his head. "It wouldn't do any good. They aren't talking about anything. I don't suppose they'll ever tell us." He looked at the trunk lid again. "It's the nuttiest thing," he said thoughtfully.... That was on Wednesday. The Friday afternoon mail delivery to the _Daily News_ brought a crank letter. It was in the crank letter's most obvious form; that is, the address had been clipped, a letter or a word at a time, from a newspaper and glued to the envelope. There was no return address. The letter itself was in the same format. It was brief and to the point: Dear Mr. Editor: The Scorpion has struck. The bank robbers were captured. The Scorpion fights crime. Crooks and robbers are not safe from the avenging Scorpion. WARN YOUR READERS! Sincerely yours, THE SCORPION The warning was duly noted, and the letter filed in the wastebasket. It didn't rate a line in the paper. II The bank robbery occurred in late June. Early in August, a Brooklyn man went berserk. It happened in Canarsie, a section in southeast Brooklyn near Jamaica Bay. This particular area of Canarsie was a residential neighborhood, composed of one and two family houses. The man who went berserk was a Motor Vehicle Bureau clerk named Jerome Higgins. Two days before, he had flunked a Civil Service examination for the third time. He reported himself sick and spent the two days at home, brooding, a bottle of blended whiskey at all times in his hand. As the police reconstructed it later, Mrs. Higgins had attempted to awaken him on the third morning at seven-thirty, suggesting that he really ought to stop being so foolish, and go back to work. He then allegedly poked her in the eye, and locked her out of the bedroom. Mrs. Higgins then apparently called her sister-in-law, a Mrs. Thelma Stodbetter, who was Mr. Higgins' sister. Mrs. Stodbetter arrived at the house at nine o'clock, and spent some time tapping at the still-locked bedroom door, apparently requesting Mr. Higgins to unlock the door and "stop acting like a child." Neighbors reported to the police that they heard Mr. Higgins shout a number of times, "Go away! Can't you let a man sleep?"